I have a weird problem, and im still trying to figure it out. I have the ZEX perimeter plate and had it jetted for 150. ran great. i went 11.52 on motor and 10.54 on the 150. i put the 200 pills in it, and it went 11.13 2 times in a row. put the 150 pills BACK in and ran a 10.60... i dont know...