BE CAREFUL WITH THAT KNOB!!!!
Where boost is concerned, it's definitely NOT a case of "if a little is good, then a lot is better"
More like "If a little is good, then a lot is (insert expensive noises here)"
That said, a little judicious increase is supposed to be ni--ice... I turned up the knob on my old 1.8T Passat wagon and it was joyful laughter all the way home... (laugh if you want, that thing was seriously fast - when chipped, was quicker than the MSP). I'm waiting for Mazda's ECU flash before doing anything engine-wise on the MSP, though. I like my warranty where it is, thanks.