Name me some top "cutting" and "bulking" steroids.
While I agree that some steriods are better suited for different purposes, the fact of the matter is you can cut or bulk on anything.
Hell, you can cut on deca if you wanted to.
And my point about diet/cardio still stands: do you really think pro's just take a bunch of winny before a show? Nope. They are busting their asses every day doing cardio and eating strict.