Table II:

Phase II efficiency-targeted finetuning within the 10–17 layer cluster on GM12878.

Fine-tuned Layers	PSNR (dB) ± SD
10	35.93 ± 0.003
11	35.93 ± 0.002
12	35.92 ± 0.003
13	35.93 ± 0.003
14	35.92 ± 0.004
15	35.92 ± 0.003
16	35.93 ± 0.004
17	35.92 ± 0.003

Each configuration is trained independently with the selected layers fully finetuned and deeper layers discarded. HiCARN1 is used as the generator. PSNR is reported as mean ± standard deviation across runs.