Hi there i have been asking around for a bit about what pads are the best on a smooth rim, so i thought i would get myself some plaz pads in the end.Everyone i have asked and watched there plaz pads have been bitey and and hell lot of sound and hold, i put my pads on hopeing for the best when i reaslised how bad they was, no bite? no sound what so ever? So then i thought il add a dab of tar, still useless? can anyone give me any tips on how to get them running so they have Bite, Sound and Hold. Please help. also i dont wont any comments saying put a grind on please thanks.x ? ?