I'm sure it's a long shot, but have any of you tried or are currently using a vacuum hold down sled?

I have a Gast 3/4 hp 8 cfm vac pump that I've used for various other shop shenanigans and I keep eyeing is for use on the Carvewright as well.
I occasionally have wanted to run some things that were difficult or impossible to fixture in a normal sled.
Thin sheets of plastic, or thin wood, and assorted foams come to mind.
I think the Carvewright makes such light passes that I could even hold small pieces of wood with vacuum without breaking the vac seal too, if needed. I know it would hold large pieces, but I can see a need for that in this application.

I have some half formed ideas, but I wanted to check and see if anyone else had experimented with it at all?