Quote Originally Posted by TonyL View Post
Sorry to be rude and jump in, Steve, but it seems Jon's not logged on at the moment.

Yes, a later model piston, with the synthetic head, is what he's referring to.

Mick, T20, recently enlightened many of us recently. The later piston is a little lighter and gives about 5mm more stroke, which helps the '35.
exactly; thanks Tone