Okay, I looked it up. Turns out I was wrong. The brochure I have only covers the VT-8 and the VT-812
The difference between those two models is that the VT-812 used the same tires front and back, so they had wider forks than the VT-8.
After looking around on a google image search, looks like the 812 and the VT-10 were the same frame and the VT-8 has narrower forks.
The only difference between the 812 and the 10 ? I'm guessing the size of the engine.