Ok, I believe this kind of specific period-hybrid model is the best way to model your ancestry.
I had overfitting with Iberian on the original model and it had me as too much Norse and not enough continental Germanic. So this works better for me I'm not sure it works better for you but maybe if it does not we can all collaborate to make the best and most useful G25 model there is. I'm not claiming this modified version is the is really great per se because I threw it together as a quick hack to get better results for myself and all I know : caveat emptor -- works for me ! I'm no gixajo !
Code:
Celtic_Britain,0.1317503,0.1307495,0.0601505,0.0480462,0.0350832,0.0201498,0.0048175,0.0036922,0.0042438,0.0041915,-0.0044248,0.0057322,-0.0105175,-0.018476,0.0180167,0.0100438,0.001206,-6.33e-05,0.0033312,0.003908,0.0038995,0.000247,-0.0012018,0.0114172,0.0004493
Iranic_Persian,0.095611,0.111708,-0.069767,-0.036176,-0.047393,0.003626,-0.00235,-0.001846,-0.043155,-0.019499,0.003897,-0.002997,0.008771,0.002615,0.00095,0.009679,-0.010561,0.012922,0.006788,-0.003627,-0.003868,-0.013107,-0.004067,-0.004699,0.007664
Egyptian,0.050082,0.146744,-0.042426,-0.1183805,-0.0020005,-0.049782,-0.015628,-0.004731,0.0474495,0.006196,0.0090125,-0.011465,0.029732,-0.005849,-0.0008145,-0.0020555,-0.0074315,-0.0019635,-0.0035195,0.0120055,0.005615,0.0016695,0.0036355,0.003916,-0.0005985
Iberian,0.1239044,0.1505886,0.059639,0.0003691,0.0686281,-0.0074901,-0.0052371,-0.0001319,0.0395609,0.0550354,-0.0029926,0.01291,-0.0243167,-0.019621,0.0066116,0.0103233,0.0156089,-0.0004163,-0.0021549,0.0007146,0.0115154,-0.0001766,-0.0088561,-0.020261,0.0028397
Galli_Aquitani,0.1297585,0.153345,0.0512885,0.0033915,0.0400075,-0.0026495,-0.00282,0.0043845,0.017589,0.0278825,-0.0090125,0.0025475,-0.022745,-0.016308,-0.002443,-0.0061655,-0.004433,-0.008298,-0.0011315,0.001626,0.0018715,0.0034625,-0.005053,0.0037355,-0.0013775
Levant_Canaanite,0.0812696,0.1468454,-0.0613196,-0.0979336,-0.0105248,-0.0389334,-0.0047942,-0.0065998,0.0114534,0.0101686,0.0104904,-0.0097712,0.0215854,0.005505,-0.0075734,0.0065234,-0.0001562,-0.0011906,0.0015086,0.004252,0.0042674,0.007543,-0.0012572,0.0015906,-0.0005028
Greco_Romani,0.1039821,0.1495156,-0.0235307,-0.0574065,0.0045265,-0.0204055,-0.0011946,-0.0051488,0.0006604,0.0196549,0.0034575,0.0025539,-0.0040602,-0.0014737,-0.0081715,-0.0014474,0.0035992,0.000454,0.0012178,-0.0032854,-0.0025579,0.0020454,-0.0006985,-0.0004845,0.0004141
Galli_Helvetii,0.125205,0.153345,0.050534,-0.003876,0.049548,-0.005578,0.0047,-0.002077,0.014726,0.033896,0.001786,0.016335,-0.016353,-0.008945,0.001764,-0.001591,0.009518,0.001647,0.002514,-0.006128,0.005241,0.005688,-0.012078,-0.004338,0.000958
Italic-Illyrian ,0.132035,0.151314,0.033941,-0.01615,0.024928,-0.005857,-0.006345,0.007154,0.003681,0.028976,0.001786,0.01169,-0.02111,-0.001376,-0.005972,-0.008486,-0.006519,0.004941,0.005531,-0.014257,-0.001872,0.00507,0.001479,0.00253,0.003353
Baltic,0.12881,0.1064613,0.093903,0.0930778,0.0434952,0.0322583,0.0097137,0.0131533,0.0019773,-0.036356,0.0054128,-0.0121143,0.0222,0.0148862,-0.0057682,0.0081983,0.010474,-0.0006547,0.003289,0.011193,0.0060727,-0.00237,0.0028553,-0.0118087,-0.0021555
Germanic_Frisii,0.1223596,0.1303939,0.061169,0.048773,0.039792,0.0199408,0.010975,0.0052151,0.0013295,-0.0024966,-0.003735,0.001109,-0.0091576,-0.0038398,0.0161643,-0.0008352,-0.0133511,0.0032684,0.0041354,0.0040271,0.0060019,0.0037342,-0.0007273,0.011146,-0.0004429
African_Bachwezi_Empire,-0.6014127,0.0635975,0.0167346,0.0064196,-0.0028466,0.0072162,-0.0118388,0.0153745,0.008232,-0.0269026,-0.007754,0.0122142,-0.0305125,0.0008429,-0.0232082,0.0143361,-0.016461,-0.0026921,-0.0066149,0.0010631,0.0015442,0.0005872,0.0026806,0.001687,-0.001886
African_Aksum,-0.5779179,0.0545678,0.0030419,-0.0049742,-0.0026261,-0.0019337,-0.0101839,0.0137534,0.0733831,-0.0899031,-0.0188479,0.0219105,-0.0369769,-0.0003396,0.0076185,-0.0156191,0.0180017,-0.0113682,0.0194245,-0.0184254,-0.0006737,0.0046822,-0.0033358,-0.0034782,0.0036403
Hun-Sarmatian,0.0387,-0.3879325,0.0771215,-0.0224485,-0.062781,-0.038766,0.017861,0.018922,0.003988,0.007472,-0.0261445,-7.5e-05,-0.0052035,-0.001789,-0.0012215,-0.000862,-0.004498,-0.0022805,-0.002074,0.0047525,-0.016533,0.005317,-0.0146665,-0.0028915,0.003892
Early_Slav,0.12862,0.129988,0.068259,0.046835,0.02739,0.013387,0.007285,0.014076,-0.001841,-0.018406,-0.000812,-0.004346,0.003717,0.007156,-0.010993,-0.003182,0.011604,-0.002027,-0.002388,-0.004752,0.005615,0.000618,0.001725,-0.000964,-0.006706
Germanic_Norse,0.1281142,0.1294236,0.0681749,0.0618366,0.0366562,0.0195534,0.0069459,0.0088458,0.0002728,-0.0021463,-0.0048718,0.009608,-0.0101914,-0.0155362,0.0242939,0.0120656,0.0019703,0.0065033,0.002947,0.0051831,0.0056566,0.004053,0.0024102,0.0136563,0.0015302
Fenni_Saami,0.1044325,-0.036051,0.1057825,0.0792965,-0.0122328,0.008576,0.006169,0.0141918,0.0037328,-0.0303422,0.033046,-0.0083175,0.019772,-0.0182695,-0.0065485,-0.0034805,-3.28e-05,-0.0031672,-0.0073848,0.0008442,0.016658,-0.0018547,-0.0016945,0.004097,0.0008382
Moor,-0.0393828,0.1314096,-0.0023384,-0.0687344,0.0337292,-0.0363672,-0.0299874,0.008261,0.0708878,0.0305428,0.0075674,-0.0059948,0.0182554,-0.0176982,0.0232082,-0.0130468,0.0031814,-0.019206,-0.044321,0.010405,-0.0134762,-0.0377142,0.0232692,-0.0011806,0.0046224
Germanic_Longobard,0.114961,0.106631,0.048649,0.042959,0.028313,0.013387,0.011281,0.017768,-0.001432,-0.010023,-0.002436,0.006444,-0.01219,0.007156,0.018051,0.002387,0.00013,0.008488,0.011816,0.002876,0.010482,-0.000866,0.006039,0.005302,-0.000239
Minoan,0.1192866,0.170609,-0.0181772,-0.093993,0.0295438,-0.0398256,-0.001316,-0.0034614,0.0103488,0.0598102,0.0029878,0.0153164,-0.0251238,-5.48e-05,-0.0374586,-0.0109518,0.0173934,-0.0012414,0.0088742,-0.0136316,-0.0133764,0.0083836,-0.0050776,-0.0010604,-0.0024428
American_Chumash,0.048944,-0.313799,0.111628,0.091086,-0.109559,-0.019522,-0.278723,-0.332755,-0.01493,-0.021322,-0.005034,-0.001199,-0.001784,0.013762,-0.006107,0.008618,0.005867,-0.00076,0.003645,0.002251,-0.00287,0.01051,0.001356,0.004217,0.001796
American_Patagonian,0.0478055,-0.310752,0.119736,0.0906015,-0.1054045,-0.0157575,-0.2868305,-0.346139,-0.001636,-0.0116635,0.0051155,0.00562,-0.006541,0.0276625,-0.0185935,0.007624,0.003977,-0.000317,-0.0001885,0.001938,-0.0091715,0.001546,0.0043755,0.0024095,-0.0026345
American_Amazonian,0.0028455,-0.3767615,-0.089755,0.0172805,0.1481815,-0.0518735,-0.0094005,-0.009692,-0.026179,-0.0195905,0.0383235,0.00562,-0.0043115,-0.00578,0.0093645,0.008618,-0.0035205,0.000887,0.0093015,-0.002376,-0.0006865,-0.025967,-0.0030815,-0.0071695,-0.0461635
American_Beringian,0.049513,-0.352389,0.115022,0.058463,-0.1170985,-0.0220325,-0.1433565,-0.1700695,-0.00634,-0.023053,0.014696,-0.0008245,0.006987,-0.0059865,-0.0173045,-0.0045745,-0.0082795,0.0062075,0.020237,0.011756,0.014287,-0.0257815,0.0062855,0.0201835,0.026285
Arab_Beduin,0.0758823,0.147929,-0.0599623,-0.11402,-0.0056417,-0.0476903,-0.0108887,-0.013307,0.0336783,0.0075323,0.0157517,-0.0196823,0.041526,-0.0008717,-0.0031217,0.0228937,0.0018253,0.0010137,-0.0030583,0.0170917,0.0050743,0.011706,-0.0038617,0.0042577,-0.0071053
Mongol,0.093335,-0.07718,0.055814,0.05814,-0.035083,0.011992,-0.00141,0.000692,-0.008385,-0.018224,-0.004547,0.003897,0.002527,-0.016515,0.02348,-0.005304,-0.015646,-0.00038,0.003771,0.002501,-0.013102,0.002597,-0.004314,0.006748,-0.001197
Turkic_Turanid,0.0860502,-0.1147548,0.0595094,0.0468996,-0.043085,-0.0003346,-0.0015512,0.0018922,-0.0194296,-0.0251124,-0.0030854,-0.0027874,0.0024678,-0.0299742,0.0131648,0.0080614,0.0029988,-0.0012924,0.0013324,0.0068284,-0.0298226,0.0039076,0.0013556,-0.0027716,-0.0044308
Thai_FunanKingdom,0.007209,-0.397749,-0.0384663,-0.0373603,0.1042243,0.0475043,0.0008617,-0.0021537,-0.007363,-0.0081397,0.0193243,0.002098,-0.004955,0.0028443,0.0029403,0.001989,-0.0001303,-0.0044763,-0.0031427,0.0155493,-0.0065303,0.0216807,-0.0029167,0.0080733,0.037242
African_Songhai,-0.389844,0.0939365,0.007731,-0.033269,0.013387,-0.0143625,-0.0412445,0.0317295,0.0236225,0.022871,0.0057645,-0.0074185,0.0227455,-0.009427,0.019408,-0.0189605,0.004629,-0.0175465,-0.0277165,0.006003,-0.010856,-0.02269,0.017008,0.000723,0.003712
African_Yoruba,-0.6300625,0.0625011,0.022113,0.0167079,0.0005035,0.0124741,-0.044417,0.0477673,-0.0488813,0.0327694,0.0046205,0.0007904,0.0230561,0.0009509,0.0125232,-0.0096067,0.0070763,0.0004491,0.006022,-0.00299,0.0015542,0.0023156,-0.0017592,-0.0004711,-0.0004246
Chartaginian_Iberia,0.080814,0.139128,0.005657,-0.037791,0.035083,-0.016176,-0.004935,-0.007615,0.02986,0.042461,0.001624,0.010341,-0.004906,-0.007156,0.004886,0.012861,0.002217,-0.008742,-0.001508,0.003001,0.001622,-0.0115,-0.002095,-0.008676,0.005389
South_Asian_Vedic,0.0456004,-0.0622011,-0.1456394,0.1089727,-0.0717441,0.0594735,-0.0012631,0.0111052,0.037006,0.0210711,-0.0030548,-0.0002435,0.0001673,0.0026149,-0.0040969,-0.0050965,-0.0007741,0.0004197,-0.0004321,0.0016258,0.0017312,-0.0013061,0.0016253,0.0027336,-0.0037796
Indonesia_Majapahit_kingdom,0.009106,-0.397072,-0.088246,-0.024225,0.154183,0.06777,-0.002585,-0.001846,-0.009408,-0.018224,0.096621,0.008692,-0.013379,0.013625,-0.00095,0.002917,0.002347,-0.006841,-0.002388,0.022261,-0.006613,0.007048,-0.013927,0.014219,0.040236
Celtiberian,0.125205,0.1431895,0.065053,0.0114665,0.058011,0.003347,-0.0034075,0.0045,0.026077,0.034989,-0.002192,0.0088425,-0.0169475,-0.0085325,0.0107215,6.65e-05,-0.008279,0.0008865,-0.000126,-0.00075,0.0082355,0.0023495,-0.0070865,-0.0118085,-0.0061075
Germanic_Poprad,0.124067,0.135065,0.059585,0.043282,0.041238,0.017291,-0.001175,0.002769,0.002659,-0.00328,-0.003248,0.007044,-0.012487,-0.006606,0.0057,0.020154,0.002217,0.000127,-0.000377,-0.00075,-0.00287,0.004081,0.000986,0.021328,0.000599
I dunno, who knows ? Maybe, it does not need to be changed and works for most people but I doubt it it seems like overfitting for celtiberian will be an issue for some people in the very least.
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