I'm only on day 18, so far the combo of s4/GW has been good....endurance is way up, I think I'm getting stronger as well.
My wife grabbed my arm at the gym today and said it is getting harder...she doesn't even know I'm taking sarms....![]()
s4 will definitely add a lot of strength and most definitely provide muscle hardening... s4 is definitely one of my favorites.. also it provides excellent vascularity, especially the leaner you are