Top Speed ES3, with and without modified fw.
 

I have gotten 23km top speed from my ES3. I then flashed a firmware I cooked up, and OMG that made it go FAST, 36km top speed. However, that only lasted for that one ride. Since then, any time I rode it I can only get to 23km top speed (again). I have tried various settings when cooking the firmware, I'm about to try another time, this will probably be my 15th.

Any ideas? If you have a firmware you recommend, I'd appreciate a link to it, or a list of the configuration so I can make the same one.

Thanks!