I was not at the show, but the only rest that I can think of that costs that much (and has multiple adjustments) is the rest made by Sinclair. In fact, I know that GB had a products review about this product when we had the previous software. I'm not sure if it is currently available under this new software. You may want to send GB a PM and ask him. Again, GB would be much better able to describe and thus confirm, or deny, whether the rest you saw was a Sinclair rest.
Hope this helps.
Zachary
