Good luck at the LCQ! and did you and mattj get everything straightened out about how you pose as him if you don't make it through the LCQ?
Hope you do well, and if you need any last minute practice just ask and I'll get on Wifi, I RNG'ed quite a few pokemon for the VGC and can make a lot of different kind of teams using them to help you practice, from TR, to Croak Palkia, to some Rain Dance teams.