I used HCG for about a year to address atrophy. It worked very well. Started with 375 IU 3 X weekly. Positives: It also raised my TT a decent amount, increase size (nut’s, that’s all, sorry). Lowered to 250 IU 3 X weekly, kept the size, not as much of a TT boost but a little.
Now the downsides: HCG can spike E2, and E2 symptoms such as water gain (just like a chick before her period, bloat), I was always extremely warm/hot. I felt it and the wife would always comment about it.
Forget about “no AI” if you’re introducing HCG into the mix, HCG makes E2 harder to control without an AI.
My recommendation, which was told to me before I started and I was impatient and didn’t want to hear it is this… Get totally dialed in on your testosterone dosage before you introduce any other items into the mix. Then use HCG for 3 weeks or so when you want to increase nut size. When size is back, be done till the next time hopefully a few months. HCG is only good for 30 -45 days in the fridge and costs me about $85 a vial.
Just stuff to consider for my personal experience.