LMFOA
Now on a serious note, top-dog, you really can and should work for both types of growth because what happens on a high volume light-weight routine is you cap-out on the amount of volume you can do EXTREMELY fast. What happens then? You then need to work on getting stronger, so youi can use more wieght on your volume. And the reality is, it is LIKELY a non-issue. I would BET that your diet is what is holding your size gains down, not your training. And you also gave a couple clues when you mentioned what you were doing when you were on gear, and didn't mention what you are doing off. Here is the deal, unless you are committed to LONG cycles, what you do while on is of little importance to what you do when taining clean. THAT is what you need to focus on.
Your first step should be to go to
www.fitday.com, or another online diet tracking service, and LOG EVERYFUCKING THING YOU EAT FOR AT LEAST TWO WEEKS. Without doing this, you are greasping in the dark for an object you have never seen before.
Iron Addict