Uhh first age? training experience? Diet? and if you did your research you would know the strong ph's and know that with a strong ph there wont be minimal sides. You can do your best to prevent those sides with properand PCT but when i see someone refer to minimal sides i think something like trifecta or h-drol. Now at 5'8 140 my guess is you dont need a PH But rather to EAT and im just stating this because everyone else will. Im not going to suggest anything else because i dont think you have done your research or are ready for a PH. Just my personal take because you can gain a lot just by proper diet and training and i dont want you to risk taking a PH when you can gain from food.