I have a switch assault with 3" of rise over stock. Brake line is the limiting factor. I had to move the electrical lines behind the steering column for them to work with rotation.
I just added 2" and moved my bars to the +1. An electrical connection in front of the bars pulled up through the hole that I plan on taping up just to be sure it is water tight. I am 6'3" and found the total of 3" perfect for my height and riding style.
I am 6-6 and I had a chance to ride a Pro the other day. The bars were too low. I plan on snow checking a pro 163 and the dealer didn't know how high of a riser could be installed with out a lot of re-routing cables and the brake line.
Thanks for the replies.