Pads: Koxx Bloxx Yellows Time used: 2 weeks before i gave up Rim used: Echo '06 Grind: Yes and no Brake used: Magura 2003. Water bleed, 2x steel standard magura booster, std. lever. What is your opinion of a working brake: One that will not slip, ever. How do they compare to previous pads you have used: Appauling. Used CRM's/Monty/Rimjam Greens/Heatsink/Coustellier/Magura reds. Review: First of all i had these on a worn grind, and they worked unsatisfactorily out of the box. Tried every trick in the book to wear them in, no luck. Tried a nice, sharp fresh grind, and this was no better. I was slipping forwards on loads of objects because of their wank-ness. Gave up after about 2/3 weeks due to safety reasons. Whacked some old Heatsink yellows on the same grind and they worked well. Their only good point was that they didn't wear at all, but thats not much use if they don't work at all. Very poor