I can only see my Matrix pads going nowhere near my bikes now. The bikefridge pads , semi sintered after the weekend and 2 rides totalling 50 or so miles, have given me brakes that don’t squeal, eat the rotors of do nothing. Ones I have tried since getting the bike are:
Standard Avid pads – Squealing like crazy, not much power, but new discs and brakes.
Clarks Sintered- Noisy and grinding the discs into submission. Not that great
Ubers Matrix – Wooden, no feel and least friction.
Bikefridge- Silent and a lot more power than any of the above.
They aren’t anyway as powerful amongst the Shimano brakes on my other bikes at all, but having some brakes is far better than none at all.