I have an'07 Apex Mtn SE and looking at places to make improvements witout going nuts (i.e., turbo/supercharger) ready to ride I am about 200# and ride the 5,000-9,000 range. I am thinking about clutching and gearing changes, any recommendations? If I go to the 19/40 combo what needs to be done to the clutches? Also thinking about going with the Hauck GHT-R-DUN! kit and new head pipe after this season. Anybody have experience with this setup on the MTX/Mtn. Apex's? Thanks