I change stacks every 6-12 months depending on what hormones/compounds Im taking...At first I took just Testosterone for over a year at moderate levels and wound up with raisin sized nuts and no sex drive- so I decided I needed to change and vary the stack formula regularly to avoid sides. And if sides do occur I'll alter the stack ASAP.
Acne is always a problem for me.Right now Im dealing with very little acne but if I take too much or the wrong thing BAM! it pops out all over my shoulders and back like mad.I just monitor and alter as sides occur.
My EQ/DECA/TEST/Anavar stack right now is keeping my acne very low and Im gaining muscle and looking alot harder than I did on my previous DECA/TEST/ANAVAR stack-which contained much higher dosages of Deca/Test than my current one.
ITs working so well for me I cant imagine not keeping on this system- BUT everyone is different so remember that certain gear will work better for some than others and sides occur differently on everyone.All you can do is try something and monitor it well-keep a journal of your usage.