when i was getting a jet kit i ask a local guy at a bike shop about the stage 7 he told me you loose midrange torque. I have seans jet kit and a kerker i am more than happy with the way the bike runs
midmo raider i have the same set up as you except a kerker with comp baffel. With the 155 mains the top end was weak, went to stock mains top end was great but had to move the needle clip to 3 rd down maybe i will try 2nd with a shim very pleased with the way the bike runs now hope this helps...