Heh. Light blue paper…
I use them, they’ve been great and stood up to unreasonable abuse- if they’d given me grief at fort william I wouldn’t have held it against them but they didn’t even hiccup. Gone through about 8 sets of Kevlars now I think on XT and Formula Oros, and a couple of sintered- prefer the kevlars. Good performance, decent lifespan, cost buttons, a winner for me. Best allround pads I’ve used.
But, quite a few people have had issues like bad pad fit, short life, and with the friction material coming off, which is bad… “It’s a bad batch” they say but you know it’s never a bad batch. Playing devil’s advocate I’ve had bad fit from Discobrakes, and I’ve had the friction material come off OEM Shimano pads, as far as I can tell it’s just something that happens.
I suspect they work better in some brakes than others- most of the fit complaints are for Avid for instance.