Surprised your not using grooved dics yet. Have you tried them out yet. Do you think you will have to install a bias valve?
i would use grooved dics jon, if i had the money to afford them , according to northener and various people on club -s12, they work fine without a bias , i've not had time to try it as its got no I/C or rad on yet.
__________________ fj20/et a replacement for displacement