I yanked out the restrictor, took out some weight and stuck on 17" wheels and ran ITR in Sopac region last year, but I was the only one, so I moved back to ITS for this year. Maybe next year I may run up in Northern California some. Or maybe if you guys want to come down I'll change back and we can have a North/South shootout. I'd send a picture, but cant figure how te reduce tha size of the file.