So after getting my ecu flashed by archer and dropping a tooth on the front sprocket i thought id have gained alot more. I use my buddys 08 cbr as a gauge. He has a slip on and -1+2 gearing. Mine stock he'd start pulling as soon as i shifted to second. Now after my flash,-1, and a k&n he starts to pull me at the top of 3rd and through 4th. Total about 4 bikes. Which was a big gain from what it was before but in my head i thought it was gonna be alot closer from what people say about the zx10 and how it has legs up top. I out weigh him by about 25 pounds so i know thats a factor. And i think the gearing plays a small role also. The Archer flash is great though no complaints there. I believe i may have been short shifting it at 12k though. Noticed my shift light comes on about 11k and redline is now 14k. may have made a small difference.