has anyone else converted a grasshopper to run carpet. I run on a 30 x60ft track. oval 5 seconds flat, figure 8 6.3 seconds, road course 12 seconds. It has a stock motor, 21 tooth pinnion, 4200 nimh 6 cell. Right now I cant find front shocks short enough to replace the solid links. Also the Jaco foams grab so hard it buckles the rear shock towers, havent broken yet.