Why am I slow?

[kazuaki]

The slipper is very tight and shows no signs of excessive wear. I ran agin just now in a commercial area with much more space. Same speeds as yesterday. I am still not getting extended period of WOT. I roll inot it and get up to 80-85% throttle (just a guess) and as soon as I get to WOT the front lifts. Several times I passed my friend holding the radar doing 65 mph with the front wheels off the ground. I'm not sure if this is a power wheelie or an issue with aerodynamic lift. When the batteries started going off a bit, I was finally able to go WOT for the last bit of the run. In those runs, even witht he batteries going a bit soft, I still ran 65 mph.

Not really sure what my next step is, or how the heck these others guys have run 15mph faster than this.