I don't think that leaving an arc of rubber behind is 'normal'. Mine doesn't.

Could you tell if it was the front or rear wheel that left the track?

Try finding an open area (BIG open area). Put the VX in reverse and stomp hard on the accelerator a few times. I'm not sure if it'll help but it worked with an old Samurai I used to have when the TX would bind. It certainly won't hurt to try it.

Keep us posted.