I use Aztec Red pads on the Kona. Have for years, never a problem. Last ages too. However last time they needed replacing they were hard to find, used Kool Stop soft compound pads instead. Rubbish. Very hard to setup due to their crap shape and absolutely rubbish mounting hardware. They also squealed like buggery at the first sign of moisture. Went to the effort of finding some Aztecs pronto...