Nice work mate, would have been interesting to have done a dyno run before doing the piston to see the difference on paper but I know thats not always easy. I have done the stage 2 hot cam mod and just tuning my power commander with my seat of the pans o meter
If you want it to sit a revs more happily I suggest the stage 2 hot cam, moves the power up the rev rage a bit and the motor just feels happier at higher rpm.