HCG can actually be dangerous in PCT, I don't think Nelson can reasonably suggest something that increases estrogen in PCT (hcg is made from pregnant...
You can inject around the site you want recovery with but be careful don't inject into your back, "disc" guessing you mean back? You can inject into...
I have never ran them and got blood work, only researched SARMs on my own. From what I have read and heard, SARMs are much less suppressive but still...