This might help you to decide. https://www.pinkbike.com/news/brake-pad-information-2009.htmlMy Avid BB7 needs new pads, but what type?
Sintered, semi-metal, organic?
I believe it's down to the tempering of the steel used in the rotor, sintered/metallic pads can cause the rotor to heat up and cause warping usually indicated by blueing of the steel, probably more of an issue with down hill braking. If not using resin pads then pad wear may be an issue as metal surface treatment/finish is different and they may squeal like a pig.Any idea why it says that?