I appologize, Nero, for breaking into the guys thread. But having been one, I thought I might have an insight. Though reversed from yours, of course.
I have noticed that I move differently now than when I was flat chested. One of the most noticeable things for me was having to adjust how I cross and move my arms. When I was flat, I could cross my arms across the middle part of my chest, whereas now I have to accomodate the "girls". Also moving my arms is different when my arms cross the front of my chest. So for you, I think you'll find your range of movement increased.
I've always felt embarassed being bare chested, but like Dennis mentioned, you'll probably feel it as freeing.
My mental state improved dramatically with my implants, so too, you should feel an improved mental outlook when you have yours removed.
I think one thing we can all agree on is having to wear a bra all day is a pain!
I'm sure that it's been mentioned before, but it would make things soooo much easier if the MTF's and the FTM's could just get together and to a parts swap!

-Sandy