You will may not even hold the muscle that you put on. Most don't. If you came away with 2 pounds of LBM you'd be doing miraculously. So don't bet on it. Most pros are lucky to add 10 pound of LBM a year. Ronnie Coleman only added an average of 9 per year from his first NPC title to his last Olympia and he used quiet a bit more than a 4 week dbol cycle.