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(3) What actually is making a difference in getting rid of zombie hands and other rendering glitches is using a bigger resnet backbone for the generator (trying resnet 101 now). And believe it or not, it doesn't really increase memory requirements much, relatively speaking.
(4) It's still a work in progress (I want to make sure these changes are solid before I push them) but that's the most promising direction right now it seems in the quest to squash zombie hands and get better overall renders.
