Kris
Thanks for the info on the 17mm Radial being best

What difference does the 18mm vs 20mm pump lever ratio make to the OEM calliper setup feel like

Richard, I guess with the Tokico, I would use 20, but with Brembo I use 18. the difference is subtle. 18 gives you more modulation but longer lever travel. I have Corsa one, so I have additional Normal/Sport/Race adjustment, which corresponds to the point where the brake engage; frankly speaking, I hardly see any difference. the regular RCS is good enough.