Really? That is fascinating. Could you have had bunk hcg? Were you on test a long time before adding hcg? Maybe you needed mega doses to bring fsh back? Just spit balling. No homo.
I’ve actually never taken test without HCG. There was one time where I was running out and had to cut the dose in half for an injection or two, and my wife noticed some shrinkage (no homo), but that was it.