Clomid at 25-50mgs ED and Nolva at 10-20 ED is a very old school and reputable formula that even when I worked in the medical field, we administered and was prescribed as "HRT"...
And it usually does work very well and is tolerated by most men, but some men do hate how they feel on clomid and get mood swings and acne,etc.
I have one client now, never used AAS and he was about 3-400n/dL consistently in labs. We put him on 25mgs of clomid ED and now after 4 months of use, he has shown 3 consistent labs of 1100n/dL. Excellent result. Rare but excellent. I usually see clients pick up 3-500n/dL in addition to whatever they naturally produced prior, so long as they maintain.