Drag racing with a toploader

[XDOUBLEU]

Do any of you guys have any tips and tricks for racing with a toploader?

I have been having trouble with my shifts, especially 1st to 2nd at full noise. If I try to grab second in the burnout, It crunches and won't go into gear, and then second crunches after the launch too. But if I stay in first during the burnout, then I can get second ok after launch.

Is this an inherent problem with pushing a toploader hard? Or do I have a problem with my setup

The synchro looks ok, but I am considering removing every second tooth off the synchro cone in an attempt to get a better shift at hi rpm . Has any of you guys done this mod before, and do I need to mod the gear as well?

I am running an xw in full street trim with 393 clevo, toploader, centre force dual friction clutch, and 4.11 rear. 6 cyl front springs, koni shocks, 235 et streets

Last week, with a new clutch I ran a pb of 12.07 @ 119 mph and watching the vid. I could have had a cut lunch between gears . What can I do to make my toploader work? I am determined to delv deep into the 11 s before I can it And fit an auto
Cheers