bugger, should of held out for a few more replies before buying! lol
bought n paid for now, TBH its my first track day in the car so wont be pushing too hard, want to see if im going to get into it properly first, as i wanted a set of R888, but with me only replacing the fronts i didn't bother.
if i think im going to get into it properly i'll replace them.
cheers again for the info