No, 50% is gonna be about the highest. I can't remember offhand if the stanford studies came up with that figure or not. Anyways, compare this to ephedrine/caffeine being able to boost your metabolism 3-5%, and you get an idea of how effective it can be.
As far as women, the only thing I've ever heard was that the dnp can affect the eggs and give birth defects. The only problem with this is that the fda pulled dnp from the market with a sample size in the 100,000 as far as women, and the only thing they found was that 6 of them had developed cataracts. Couple this with the fact that doctor...I've gotta go find his name later, I've forgotten it again...anyways, the doctor that duchaine met in jail who was prescribing dnp/t3 to his patients, almost exclusively female from what I understand, and he never had any problems with claims of birth defects.
I'd just go lighter on the doses for women.