Pads: Heatsink Reds CnC Backing Time used: 2 weeks Rim used: 19" Ronnie Grind: Yes (no tar) Medium and Fresh. Ceramic: No Brake used: 04 Magura, Echo Booster What is your opinion of a working brake: Noisy with lots of hold and bite. A brake that your not scared to do big moves with. After going through Echo Pink, Koxx Browns and Zoo Pads, I was thinking about getting some more Echo Pads but a friend said 'why not try the heatsink cnc backing pads'. I took his advice and brought some. As soon as i put a new grind and the Heatsink pads on my bike, the brake was unbelievable! Very noisey with lots of bite. About 8 rides later they still have the same amount of pad as they as the did in the box, still lock as beautifully and look quite cool aswell. A worth while investment