I'm actually already on trt at 200mg/wk, been on that for about 3 years now. Sterility isn't an issue, I have four kids and have since had a vasectomy, lol!
What I found that has worked in the past, up to 16wks anyway, has been 4g of trib while "on" to take care of any potential nut shrinkage as well as losing anything post cycle.