Great info regarding the WR250F springs... I noticed that riding the 250 feels like I'm shifting through butter, but the 450 feels hard and clunky. I'd like to get one of these:
Google: Clake One Light Clutch
Pricier than a Magura (and actually uses some Magua components), but supposedly makes a much bigger difference... I'll wait and try swapping the 250 springs first, then maybe try to put my MSR Raptor pro on... Only problem is that my MSR doesn't have the hotstart attachment... Is there a way to secure the hotstart, or should I just sell my MSR and buy a new unit which has the hotstart?