very much an advantage on smooth tracks but obviously you will not need the rebound to be as quick. what i have found on smooth high grip tracks is a dramatic improvement in L/R transitions. jumping is also improved due to the increased rebound. as with anything it takes some tuning but once you have it set its pretty impressive. i had to thicken up the oil 15pts to get the car tame enough to drive but i didnt have the time to mess with the pistons, it was a quick fix. will go out this week and actually set up a high grip piston set.

remember that in 1:1 cars compression and rebound are not the same on and off road. it does make a difference.