Right I no this has been posted a million times but no real answer. Okay, I ground the rim on my Mod. Ronnie rim if that make a difference. I set a new pair of heatsink "blueburry" pads. They seemed like a good pad, span the wheel and they made a LOUD honk. Went for a ride, and they had loads of bite, but lacked hold, They slipped like a bitch, I dont really know whats wrong, the grind is light - medium. I tryed some Koxx greens, and they were the same, but silent. Anyone know whats wrong? Cheers!