IME/IMO Dbol for mass, and Drol for strenght. For me Drol had lot stronger effect, but I feel lot better on Dbol... I dd ran Drol for onyl few weeks though, and ramped my dose too fast too high, and had too few support supps (and repeated the same dosing mistake with Sdrol last winter, lol!). I will propably run Adrol again during my next winter bulk, this time with more conventional dosing and load up on support supps. I've done enough Dbol for a while, time to switch to Adrol/Sdrol for a change.