Finally got the grinder out! Took about 6 inches of the arse. It's a good start. After looking at a lot of chops I've decided not to take of too much. They just don't look right chopped much shorter unless you extend the swingarm which I'm not gonna do on this one. I also want to keep the rear/pillion footpegs so I want a seat that's long enough to squeeze a shorty on the back if needs be.