The MOST 'gyno friendly' OTC hormone product is by far AndroHard. It is a stronger DHT precursor that has been rather successful in reversing gyno or preventing its ugly appearance.
I do NOT like your aggressive pct using a harsh lipid killer like Letrozole at 2.5 mgs --- this will wreak havoc on your immune system,. sex drive and HDL profile.
I rather see you use something like Aromasin (exemestane) -- however if using exemstane -- there really is not much use in using Formestane -- keep in mind formestane also will convert into 4-hydroxy testosterone which can impede PCT to a degree......