Bazzaz is great with the individual gear kill times. However you're almost balls deep with Power Commander, so it may be cheaper to stick with them. Both are very good regardless.
You'll have to get the Ignition Module going the PC route. Yes you'll see threads where it works without it. But the reasoning is simple, most 600s these days fire on 8 injectors, the PC controls 4. So if you don't use the Ign Mod, when the QS initiates your engine is still combusting with half fuel resulting in jerky or not efficient shifts.
With the Ign Mod, you're cutting spark entirely resulting in a more efficient and smoother shift that's also better for your engine components in the long run.
I use PC on my personal bike, and have used Bazzaz on the shop bikes. I like both and have no problems with my PC setup.
Also, if you're anywhere near a college campus, talk to someone in the engineering school with access to the in-house machine shop to cut down your stock shift rod. The ones that come with the PC or Bazzaz setup are meh.
Nathan - #425 - 07 Yamaha R6
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Last edited by natedogg624; 10-10-2012 at 12:11 PM.