I’m using your Andarine S4 at the moment and really liking it, the only draw back for me is the visual effects (going from a bright place to dark takes a while for the eyes to adjust now. AC-262 seems to be very similar but without those issues. Very little negative side effects. A guy on Instagram Alek.performance ran a very high dose of S4 with estrogen for two years straight, his slightly enlarged heart went back to normal and his hairline imroved due to lack of DHT conversion presumably. Seem like pretty interesting compounds.