Re: Master Cylinder/reservoir replacements
For the brakes, I can't actually make a quantitaive claim, as I upgraded to a 2 caliper system, new rotors, and pads all at the same time... I'd make the claim that they're a better quality item, though.
On the clutch side, I experienced a significant reduction in effort required at the lever.
If you're looking for a real upgrade, you could roll the extra 100 bones for the Brembo 16x18 or 19x18 GP radial master cylinder, but you'll need a pressure activated brake light switch, as the GPs are race oriented and have no provision for the OEM brake light switch.
The 999-type radial master cylinder is also an outstanding unit (for those who haven't had the chance to ride one, the 999 has amazing brakes right out of the showroom), but because it's an all-in-one design similar to the 'coffin-boxes', I'm not sure if they would address the original problem with the Cycle Cat clip-ons.
--Fillmore