be very wary going downhill and jackknifing.

the trailer will want to accelerate down the hill faster than the vx, causing a potentially fatal situation. Usually this problem is solved with longer wheelbases, but as you can tell the VX don't have this luxury.

Good luck on the tank thing, keep us informed. I saw a video of one of those things on the internet once, and it looked like a helluva lot of fun.