I am considering using it between cycles (as I am quite lean 8.5% it seems that slin may be a good option for me). I am curious as to what some results you guys who have used it before (particularly by itself) have achieved. Were your gains very permanent? And how uncomfortable did it make you feel, sides wise? I have read good anecdotes of guys gaining like 10-20 lbs. in 4 weeks and putting on 40 lbs. on their squat...I am lucky if I get that out of any cycles...