I don't have a great many miles on my reFlashed ECU from Dynotronics. Maybe 100 or so. When I first took the bike out for a ride back from the shop, the bike felt a bit odd.
The idle seemed a bit low ... about 1000 rpms, but dipped below this and then went above. Fluctuating. Could be an air tube installation problem, don't really know. But, not a real problem.
The first 30 or so miles I was not all that impressed for my $400 usd that I spent for the reFlash. Since it was raining, I tossed the bike in the garage and waited for better weather.
Couple days later the weather dried and I took the C14 out for a proper romp. Maybe 75 or so miles.
WOW !!!
The bike came alive and was obviously faster all thru the shifting range. I only revved the bike to 8500 or so since the front wheel wanted to come up. Which is not my way of riding these days.
I could feel a bit of 'buzzing' in the grips/foot pegs ... and when I spoke with Joe, he said this was a result of the cam timing bump. He said he could fix it if I felt it was unpleasant. It's just 'different', not unpleasant ... at the moment.
Anyway, the bike is quite a bit quicker. I'm happy with the reFlash that Joe and Dynotronics have done. I rolled off a ZX14, so having a bit more ponies is well worth the cost IMO.
BTW, I'm running the reFlashed ECU along with a Holeshot single street mid pipe/muffler. I figure I have about 12 or so more ponies than stock ... along with a better look, and less weight from tossing the oem potato launcher.
I'm very pleased with the Dynotronic reFlash.