Well i do not think proviron would be a good addition to PCT and here is why:
1) Provirone - even when used at 150mg for 12 months - does not have any anti estrogenic effects. Contrary to popular believe. ( This was demonstrated in 1991:
Gerris, Peeters, Comhaire, Schoonjans, Hellemans; Placebo-controlled trial of high-dose Mesterolone treatment of idopathic male infertility)
2)
Provirone has the potential to supress LH and FSH. This potential alone should exclude it from any PCT protocol (Varma, Patel; The effect of mesterolone on sperm count, on serum follicle stimulating hormone, luteinizing hormone, plasma testosterone and outcome in idiopathic oligospermic men; 1988)
3) Provirone has the potential to lowers SHGB - this is good you may think BUT did you know SHGB is needed to convert androstenedione to test? (
1) Cavaliere H, Abelin N, Medeiros-Neto G.Serum levels of total testosterone and sex hormone binding globulin in hypothyroid patients and normal subjects treated with incremental doses of L-T4 or L-T3. J Androl. 1988 May-Jun;9(3):215-9.) If anyone is interested a rather interesting read concerning this topic
http://www.cuttingedgemuscle.com/For...=SHBG+activate