Possibly more important than having one, acouple of the guys I ride with have or had integrators. So, I've seen them in action. The one guy (Cdyer77 from this board) had the integrator on his Super Hawk. His just used the stock bulbs, I believe. That thing was a nightmare. I couldn't tell if he was braking, turning or what (although it's better than his current LED tail lights!
). The other guy has an LED replcement set-up on an R6. His uses yellow lights for the indicators and red for brakes - all within the stock tail light. It's MUCH easier to figure out.
Have you thought of flushmounts?