I used a brass button and it was an absolute pain in the ass, never again. Made me look like a top bogan dropping the clutch and spinning the wheels when trying to get up the driveway but that's all I could do. Even the hill up the street was a pain to get off when I had to stop for traffic.

Replaced the pressure plate with a softer unit and it was much better. Slight clutch slip when hammering it, but that was hammering it and rolling the clutch on so all in all a good combo but would much prefer HD.

Don't waste your time with any of the race stuff. Get that thing on the road with a fresh kit and fresh flywheel, if she slips the HD clutch then buy a brass button/ceramic and I'll eat my words.

EDIT: eat my words??? you know what I mean.... 'I'll take back what I said'.