I've had both the Dia Compe Grey Matter pads as well as the Kool Stop Continentals on a bike. For the life of me could not get the front Kool Stops from squealing, despite toeing in, bedding in, etc. Changed to the Grey Matter and they were silent from the get go. I have the Continentals on a different bike and they are silent. So.....brake calipers? Either way you'll do great.