racer x 1- talking to Frank Root, I ended up with Ryan Maifield's 2007 JConcepts setup. Just go 5 wt lighter in the oil front and rear and green springs in the rear. With Proline wide front tibs and holeshots on the rear, both in M3 compound( and with buggy grip), you should be in the ballpark. And I ran every gear from 78-21 to 81 26 with an LRP 8.5 with a sintered rotor. I had my fastest lap, mid 17's with 81-23, but liked 81-24 the most and think once I adjust my lines a little, should be the hot ticket for gearing. I found gearing taller on the LRP helps the car carry more speed, but means you have to brake more. Gearing lower helped with drag brake, so it made the car a little easier to drive. Play with gearing and don't be afraid to play with the speed control settings either. I didn't really move my setup around a lot, but played with the motor and speed control and slipper the most.