lol, yeh i had some cnc coust pads on a grind a while back on a fairly harsh grind and they were mazing.. take awhile to bed in, but once there sorted there good pads.. hold, bite and have aload of sound! but its well worth getting them in cnc backens.. also they work on smooth rims really well aslo, so thats another but atm, on a smooth rim best pads round are probly mega pads, best pads ive had since coust to be honest. xxxxxxxxxxxxxxxxxxxxxxxxxx