I will say deca changed my body composition, maybe too much. there is no better bulker out there. went from 7% to 17% body fat over the course of 2 deca cycles. added 75 pounds to my bench. got up to 193 pounds and I'm only 5 6.
add dbol and test to the it and you have easily the best bulker ever. however recovery is a bitch so you better prepare and run an aggressive PCT. and also you better run caber during cycle with an AI to keep down estrogen. if you run it blindly then you will pay a stiff penalty (pun intended)