Pads: Coust 50 mm, aluminium backings Time used: Since summer I think. Rim used: Try-All Grind: Yes/No Medium/deep down to worn (now) Brake used: Magura/V '05 HS33, water bleed. Other pads I've used: Brown bloxx, plaz crm, plaz spanishfly, monty x-lite, monty milk, koolstop, maggie black, plaz fjas, heatsink B, heatsink C, heatsink blue. What is your opinion of a working brake:Hold, grab, rain performance. How do they compare to previous pads you have used: Best ever. Review: They lock the wheel. Work in the pissing rain, snow, slush, whatever. Work in -5°C, sun, etc. Am on the first grind on Try-All rim, still working well good. Wear rate is good, about 1/3 gone since the summer, so not that bad. Never had a brake as good as this, and remember, this is on a tryall rim.