[oki]

I'd say if you go slowly the body adapts. Find the dose that does not affect your performance (500 mg or less) and stick to it for, say, 2 weeks. Increase the dose a bit and stick to it again. Bulk PM powder would be better than capsules, as it allows for finer increments than 500 mg. Ultimately you'll find your maximal dose. Whether it would be enough to grow the breasts with no other supplementation is however dubious.