I have an 02 800 with Heel Clickers. With stock gearing the sled would pull 7900-8000 rpm. After the 27 gear was put in the sled would only pull 7700. I took 1 gram out of the tip and that got me to 7800. The sled is running good it ran 117 (GPS) on Ice. I would like to hit 8100 on the tack (not checked) if anyone has and suggestions it would be a great help, thanks.