Why not? The way I look at stuff like that is if you are thinking about it you might as well do it.
Originally I was all for it. Then I see some people on POR saying how they have too much rear brakes or their pedal never felt right afterwords. I just dont want to get into something I have to always mess with to get right. I dont mind doing the work of swapping everything including the MC and such, but dont want to run into problems after its all done.
You run rear discs? What set-up are you running? I am looking at Sky brackets and Monte calipers, then run the t-case e-brake and either an FJ80 MC or possibly the GM one from Rockstomper.