the government did not make steroids a controlled substance because they hate seeing muscular men. steroids do cause health problems. im not talking about a couple years of cycles but if you plan on doing it as a life style for 30 yrs it is a real possibility you will have health issues.
remember you cant cut and gain at the same.
your 1st cycle is often your best for solid mass gains dont try to stay as lean as you are. you have to up your caloric intake if you want to gain 15 lbs of mass,