Pregenolone Needed, Testicular Implant Replacement

It’s been a while since I have posted.
All labs are in what KSman details as optimal levels–with the exception of estriadol2, which is still at 32. Serum T is 626, free T is 35.
I continue on TRT as follows.
100mg of Test C weekly
1.0mg Anastrozole weekly in 2 doses of .5mg.

No other supplementations—
Question:

  1. should I also be taking a supplement of pregenolone? If so, how much, how often?
  2. Since I have “artificial nuts” should I use Hcg? Doubt it, but would like clarification as my scrotum is always tight causing discomfort on nuts
  3. should I up my T injestion amounts as I am not seeing muscular gain at 46 years despite religious lifting schedule.
  4. Anything else you would recommend?