=== EXACT SPECTRA OF PAIRED WEIGHT DIFFERENCES ===
For each matrix D=B-A, diagonalize its smaller Gram matrix.
The iid-edge ratio is only a scale reference, NOT a statistical test.
Its denominator is ||D||_F*(sqrt(m)+sqrt(n))/sqrt(m*n).
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=== TOP-SINGULAR-DIRECTION ENERGY SHARE (%) ===
layer       q       k       v       o    gate      up    down
    0  13.474  17.332  16.417  14.618   9.542   8.682   5.075
    1  11.234  10.878  12.912  19.223   6.546   5.831   4.752
    2  11.893  16.130  12.178  11.052   8.470   8.555   6.412
    3  12.385  15.693  10.767  11.617   7.708   7.406   6.413
    4  11.020  11.140   9.002  16.842   9.712   8.644   8.364
    5  17.413  17.417  11.441  10.890   8.175   7.570   7.733
    6  11.702  14.881  11.021  11.557   9.744   7.846   8.584
    7  13.097  14.333  14.393  10.599  10.097   9.708   9.036
    8  10.586  13.839   8.946  13.741  10.998   9.975   8.396
    9  19.913  11.952   8.837  10.193  12.029  10.860   9.066
   10  20.101  14.990   9.663  10.102  12.647  11.514   9.574
   11  16.949  15.586  11.239   7.564  12.262  10.815  11.405
   12  21.415  21.470   9.038   7.508  12.345  11.353   7.708
   13  12.893  11.549  13.953   9.298  12.843  12.243   5.823
   14  10.353  11.393  10.864  13.644  12.403  11.461   4.828
   15  14.263  15.824  10.156   6.438  10.347  10.086   6.456
   16   8.702   8.989   9.891   9.086   8.733   8.174   7.962
   17  12.422  18.300  11.150  15.250   7.668   7.665  12.628

=== TOP 28 BY SINGULAR-VALUE / IID-EDGE REFERENCE ===
layer part delta s1 edge_ratio top1% top4% top16% stable_rank entropy_rank r90 residual_direction_participation
   12 q     0.22893 0.10594 6.5382 21.415 44.873 72.695 4.67 40.77   75 334.35
   10 q     0.22416 0.1005 6.3344 20.101 40.651 66.685 4.97 52.33  101 325.82
    9 q     0.21652 0.096619 6.3048 19.913 39.917 66.621 5.02 54.16  104 320.82
    1 o     0.18141 0.079539 6.1946 19.223 38.441 62.628 5.20 56.76   86 197.78
    5 q     0.20869 0.087087 5.8958 17.413 40.524 68.252 5.74 50.79   92 300.55
   11 q     0.2087 0.085917 5.8166 16.949 36.561 67.044 5.90 56.60  107 301.83
   13 gate  0.29722 0.10652 5.8153 12.843 27.016 52.105 7.79 110.16  216 303.73
    4 o     0.1894 0.077728 5.7983 16.842 35.113 61.737 5.94 62.11   94 139.42
   10 gate  0.28841 0.10257 5.7707 12.647 26.214 47.904 7.91 121.77  222 315.63
   17 down  0.2489 0.088448 5.7664 12.628 29.534 63.194 7.92 63.31   80 314.76
   14 gate  0.30214 0.10641 5.7148 12.403 25.175 49.014 8.06 121.17  223 309.82
   12 gate  0.29525 0.10374 5.7015 12.345 25.100 50.593 8.10 114.34  212 312.77
   11 gate  0.29314 0.10265 5.6823 12.262 24.518 44.338 8.16 134.40  233 313.06
   13 up    0.29486 0.10317 5.6779 12.243 26.319 51.479 8.17 113.67  222 305.85
    9 gate  0.28729 0.099641 5.6281 12.029 25.177 46.750 8.31 127.46  227 302.54
   17 o     0.17597 0.06872 5.5175 15.250 32.068 56.535 6.56 77.12  127 219.65
   10 up    0.28308 0.096055 5.5062 11.514 24.859 47.631 8.68 125.80  228 317.84
   14 up    0.29781 0.10082 5.4934 11.461 23.959 47.958 8.73 127.45  230 307.83
   11 down  0.25417 0.085837 5.4801 11.405 24.136 46.433 8.77 117.19  169 197.65
   12 up    0.29062 0.097923 5.4676 11.353 24.340 50.066 8.81 116.75  213 311.96
    0 o     0.18379 0.070269 5.4018 14.618 30.284 54.267 6.84 89.42  160 213.47
    8 gate  0.28931 0.095944 5.3815 10.998 25.134 47.289 9.09 126.47  226 286.26
    9 up    0.28389 0.093552 5.3474 10.860 23.776 45.623 9.21 135.18  238 306.66
   11 up    0.28466 0.093613 5.3364 10.815 22.497 44.198 9.25 137.87  232 317.14
   15 q     0.22296 0.084204 5.3358 14.263 33.375 58.731 7.01 75.70  132 251.27
    8 o     0.19099 0.070798 5.2373 13.741 31.662 59.410 7.28 70.70  108 197.76
   15 gate  0.29985 0.096452 5.2198 10.347 21.280 43.203 9.66 146.69  236 286.07
   14 o     0.18326 0.067692 5.2189 13.644 26.638 49.320 7.33 104.77  168 199.69

=== WITHIN-LAYER TOP-4 RESIDUAL-SUBSPACE OVERLAPS ===
Unrelated isotropic 4D subspaces in 640D have mean overlap 4/640=0.00625.
This is a geometric reference, not a fitted null model.
layer gate/up q/k q/v k/v down/o gate/down up/down
    0 0.97143 0.45178 0.30176 0.38292 0.16117 0.00850 0.00805
    1 0.89632 0.29013 0.34514 0.32245 0.16229 0.01221 0.00992
    2 0.89567 0.29668 0.18950 0.40282 0.20177 0.01525 0.01602
    3 0.89916 0.37672 0.14307 0.21293 0.04302 0.00984 0.00923
    4 0.92976 0.12979 0.24744 0.20158 0.10114 0.00742 0.01005
    5 0.88603 0.16719 0.27119 0.37925 0.08195 0.01069 0.01161
    6 0.87860 0.35206 0.40290 0.41728 0.14643 0.01254 0.01257
    7 0.94225 0.46015 0.45460 0.42432 0.21959 0.00962 0.00968
    8 0.93930 0.35121 0.37395 0.32925 0.28893 0.02663 0.02467
    9 0.95218 0.28716 0.43124 0.43003 0.24595 0.01835 0.01636
   10 0.84746 0.22306 0.26048 0.34200 0.18146 0.01057 0.01202
   11 0.87372 0.26802 0.38058 0.26844 0.23168 0.00774 0.00644
   12 0.83064 0.13010 0.06986 0.31769 0.09522 0.02560 0.01953
   13 0.97257 0.38565 0.36900 0.31890 0.14860 0.01414 0.01392
   14 0.96711 0.50654 0.29154 0.40809 0.16991 0.01618 0.01512
   15 0.93045 0.60328 0.35636 0.30455 0.24010 0.01212 0.01213
   16 0.84229 0.48993 0.29009 0.26210 0.26771 0.02362 0.01844
   17 0.94662 0.41046 0.29082 0.31981 0.16431 0.01634 0.01687

=== CROSS-LAYER OVERLAPS, SAME PROJECTION TYPE ===
gate  L16/L17: overlap=0.609585
up    L16/L17: overlap=0.574559
gate  L14/L15: overlap=0.520093
up    L14/L15: overlap=0.498185
gate  L13/L14: overlap=0.473415
up    L15/L16: overlap=0.453102
up    L13/L14: overlap=0.450541
gate  L04/L05: overlap=0.448446
gate  L10/L11: overlap=0.441927
gate  L15/L16: overlap=0.437069
gate  L07/L08: overlap=0.423888
up    L08/L09: overlap=0.422953
down  L16/L17: overlap=0.417781
up    L04/L05: overlap=0.412196
gate  L00/L01: overlap=0.412158
up    L07/L08: overlap=0.410415
gate  L08/L09: overlap=0.409640
gate  L06/L07: overlap=0.405812
up    L00/L01: overlap=0.395507
up    L12/L13: overlap=0.379479
gate  L12/L13: overlap=0.367235
up    L06/L07: overlap=0.359681
gate  L05/L06: overlap=0.352898
up    L05/L06: overlap=0.344513

Total elapsed seconds: 3.6
No network inputs, state normalization, nonlinearities, or model execution used.
