Setups that have been problematic:
Gunnar Crosshairs w/ Gunnar steel fork, Tektro Oryx cantilevers, original black cartridge pads
Gunnar Crosshairs w/ Gunnar steel fork, Tektro Oryx cantilevers, Kool-stop red cartridge pads
Setups that work well:
Gunnar Crosshairs w/ Gunnar steel fork, Paul's Neo-retro cantilevers, Kool-stop black pads
Specialized Sirrus (with a drop-bar conversion) w/ stock fork, Tektro Oryx cantilevers, Kool-stop red cartridge pads