I'm not really sure if that would make that much difference from what you are doing, since the VBs(leaf bags) apparently are still tight up against you and should be kept warm. I'm just grasping at straws trying to figure out why the clamminess when I don't really have that trouble in the SS, though a few folks do.
I hope I have time this winter to test this set up using the Climashield. That just has to have some great potential, I think. A sealed bag to resist compression from the HHSS's elastic tension, with from 4 to 12 oz of insulation giving from 1 to 3 " of synthetic loft. If it will mold well to the shape of my body, that has just got to be way warm. I'll have to make myself test it though, as I am prone these days to just use the MWUQ4 or PeaPod. But, this same set up has great potential inside the Pea Pod.