All my brakes squeal, but i think ebc is the quietest. Regarding the metal brake pads, I had a set on my vulcan (it was an ebc) and it ate up the rotor. Remember it's metal on metal. I had it for thousands of miles on the front wheel, but I would still prefer the organic. One time a small fragment of something got stuck in the metallic pad. When I applied the brake, it would stop with a vibration. When that happened, a ring was formed on the rotor from the debris being scraped as it was spinning. With an organic pad, I believe it would have had the softness to eject the debris. In my opinion, I think you should stick with ebc organic pads.