The stock settings make the bike wallow in corners -- for my weight, anyway. My only question with the sportrider settings are that they are expected to work for every rider, when the bike's suspension is sensitive to rider weight. The lighter the rider, the less preload and damping he needs, especially up front.
As for tire pressure, if you read between the lines of the manual, the 36/41 set-up is intended for the maximum load of 401 lb consisting of rider and pillion. The tire manufacturers with the exception of Bridgestone, I think, recommend 31/33; Bridgestone says 33/36. Similar to suspension, optimum tire pressure is weight-determined.
I have no doubt the bike is sharper now, and that translates to happy points, but how's your back? And is the rear of the bike throwing you off on bumpy roads, where you really ride?
It's not so much a matter of holding the bike rigid for track-riding, but finding the balance between the front and rear for the kind of riding that you do.
Sometimes a click or three back (especially if you're light) from the track settings will make a world of difference in comfort, without sacrificing performance.
Hope that helps.