works a treat... broke in my zx12 and put 10 litres 16% through it racing on not including fuel used to break it in - normally would change conrod after breakin but no one had any and was waiting for one to turn up but popped the rod screwing up the liner at end brendale back straight...

also used it to break in sirio evo 3 sti, which has had 20+ litres through it before i stopped racing years back... still hard to turn over ATDC...