I just installed some Koolstop pads on my Dura Ace brakes.
They seem thinner than Dura Ace pads which makes me wonder how long
they will last.
Also they flare out towards the back, so the back of the pad is almost
touching the rim and there is a large gap between the rim and front of
the pad. I wonder if the flared part of the pad will wear first making
it flatter over time.

Joel