just on a side note Ben, you may or may not be able to use the roll bar tabs on your shoulder belts. guess it depends on the position of your seat but if the tabs are below the opening for the pass through on the seat you wont be able to go on the race track. just something to be aware of, you'll need to add a harness bar. I just mention it because the stock belt pickup point and the tab on the roll bar was deemed unacceptable for the race track and almost had to go home, lucky i just used the stock belt.

read this (powerpoint)

Wrapping shoulder belts around the harness bar is better.