[ctccromer]

I cant watch the video (youtube blocked at school -.-) but a quick suggestion that might help:

Don't use 4 normal wheels, due to the carpet. Our first year, we did that and had a HORRIBLE time trying to turn. Last year and this year we changed to having two normal wheels in the front and two OMNI wheels in the back (or vice versa, I forget) so that it turns without any hitches. It's a MUCH smoother system.

Again, not exactly sure which wheels came in the KoP as I cant see your video, but just in case, hope this helps. Good luck, and congrats!