I'll be going through the PC process within the next month, so I'll let you guys know how it goes.
I wouldn't worry about getting "blackballed". This is a career move for yourself. This is not "bailing" out of the military. You are still in the military and can still be activated at any time. Noone else is going to look out for #1 accept for you. You do what you have to do for you and don't worry about what people will think. Just my .02.