because bill llewlyln is apparently not aware that Nolva upregulates the PgR, since nandrolone is a progestin this presents a wee bit of a problem. however he is not alone in this....
also beleive that bill was one of the guys that started pushing nolva for PCT, a drug that is not particularly suited to HPGA restoral.
though everyone makes mistakes.
bills book is generally pretty good, at least the excerpts perused