I have a power vision from fuel moto. I have experimented by running on new tune and reflashing factory tune. The difference is definitely noticeable. It runs okay with the stock map, but it does surge more, pop on excel, does not cruise as smoothly, and even sounds different. The supplied map ran so well I didn't get around to playing around with auto tuning to fine tune, ran it for two short sessions, mainly to try and get the last little bit of slow around town surging. Next time around I would likely go with fuel moto's cheaper tuner spoke of above in previous post.

 

If you want to run cooler, have another 5hp or so, and optimize your fuel delivery and throttle response, get a tuner.

If you're happy the way it is and you know your EGTs (exhaust gas temperatures) are acceptable, then don't.