Huckster, Awesome post.
It's damn True, estrogen is probably the number 1 thing that keeps most guys who work out hard and diet religiously not be able to get that razor thin skin.
Just becareful of the Estrogen Rebound effect that might happen, Taper off slowly and steadily.
Basically, you have to get all your shit together, diet, foods, workout routine, "supplements", and go at it for 2 months HARD, no looking back.
Just make sure you get down to AT LEAST 10-12% before you do this though.
If you're at 20% bodyfat, just know that the EASIEST part of your whole getting in shape routine, is the first 10% of bodyfat you are going to lose. Once you get down to 10% bodyfat, that's when it becomes hard. So save you're best, for that time only.