Just because you ended up with 4 or 5 sets does not mean you need 4 or 5 or that Rory needs 3.
Cold brake performance is likely most impacted by temp and moisture. Water loves cold steel and no pad material grips water or ice. Until there is enough heat to make and break chemical bonds in the pad material, pads/calipers just squish rotors which is way less effective.
Not saying your stockers don't have better cold bite than your R4-Ses, just that there is likely something much better across the same or larger range and then something complimentary for other uses.
OK Mods, how about splitting the prep and brake content into another thread rather than in the $160 Thill thread?