The thing with the snowballs underwear is that they recommend doing 60 minutes in the morning and 60 minutes in the evening, rather than two hours all in one shot. I end up doing 20 mins at a time with some gaps in between, and then a second set of 3 in the next half of the day. The boys feel cold to the touch, but they don’t feel numb from the cold. It’s been shown to boost sperm count by a lot so I don’t think it has any negatives, and Soviet Olympic athletes used to ice their boys back in the days before steroids were invented.
General update: I’m having a very nice upswing now, with libido/interest waaay up (still not pre-fin,) and my ability to feel pleasure is partly back, maybe 20%. Morning wood is also back but not max strength. It’s been like this all week.