D watson Told me they are for smooth and tells me they are awesome with out Tar Now i know a fair few people run them on grinds and also say they are amazing Mine however are pooooooop nice bite but the hold is appauling sharp grind on a try all rim......many other pads have been fine including croco browns and heatsink reds So whats the deal ? Id like to be able to ride with out killing my self Any help???????? or info Dave x