Yes, you stand a good chance to grow the testes with HCG, permitting no damage or other variables not considered. My suggestion ... Get with a HRT specialist doctor on this. It might not be uncommon that he would recommend doing something in the range of 250iu x 3 per week. The AI is pending where your E2 levels are at, and where they should be. It might not hurt to keep some Arimidex around ... I take 0.5mg x 2 per week, and I'm on 200mg/wk of Test. I also take HCG as mentioned above.