Tar is wank .... it's so f**king shit, Grinds are so much ! better ... tar has no hold what so ever, it's all noise i've found ... and the noise is nothing to running pads on a grind, i just don't like the feel of tar on a smooth rim anyway, on a dead grind it's not so bad but still. Grinds are alot better, you try a grind with some Plaz pads and you'll soon know what a good brake. Anyway nice bike, loving the brake bodge