i tryed both martin and both didnt fit, but remember that was some time ago and didnt the first batch of the 8's come different inside or something?? my bells are stepped in 7mm from the standard flat bells and only just miss the ball joint and thats with it being rose jointed ( as they are smaller )the problem i had is the calipers are quite big and bulky as i bet them 8 pots hug the disc

cheers
dunc