Adding Weight or ballast in the trunk.

Here a short video of the day. It look like it hooking but it spins all the way thu first gear, until it hits the rev limiter. Launching and accelerating but, not hooking.
I video only semi and final round. Semi's her reaction time was slow and i caught here about 3/4 track.(this was her first time racing so she did quite well!) The finals was a bike that tried to hard and red lite. I almost caught him at the finish line.......But would have broke out, if he hadn't of red lit.