They do have a dyno. When Todd tuned my bike it was more of an actual rideability tune for lack of a better term. I told him I could care less about what a dyno says, I want to feel the difference in the bike. They put a lot of miles on the RK to make sure the maps were proper, and when they could be tweaked, they were.
They had tons of time in my bike, but charged me what I feel was a fair price. My RK runs extremely well....the noticeable difference in power and rideability was worth it. I have yet to find a flat spot or other problem area. From talking to others who have had their bikes dyno'd I wouldn't have changed a thing about the way they tuned my bike.
They keep great records of the work they perform, which eases concerns about warranty problems down the road.