I'm really curious to see how UD2 works out for you - I tried it last month, for 2 weeks. I'm a 5'4 woman, when I started UD2 I was around 106lbs with just a couple of stubborn lbs of fat to lose. UD2 didn't go well for me, I ended up bloating and retaining water like crazy, which took way longer to get rid of than it should. Plus, putting myself into the starvation/binging schedule was really, really bad for my eating disorder that had previously been in remission - I thought I could handle it, but UD2 really brought out my need for compulsive overeating which I'm currently working on getting back in line, which is doable, but not fun. I'm probably now around 110-112, which for me feels uncomfortable and unbearable.
I'm starting to think that most diet theory is really only applicable to men. So many of the studies seem based on how men's bodies react to things, with the assumption that women will react the same, but I'm starting to think that's a giant error. Before doing UD2, I was IFing daily with ease and losing weight. Now, after UD2, I still IF pretty frequently but for some reason I can't figure out, I'm gaining weight instead, even with every other day fasting. I wish you good luck, and I'll be popping in to see your progress - I hope your experiment goes better than mine did!