So I've been tossing around ideas how to make an underquilt out of the down vest or jacket I have , while still maintaining good functionality of both. Looking at the JCP down puffer mods people have done, I've decided I'm going to try and combine the two at the bottom with velcro, and instead of running channels for suspension on the sides, doing snaps. The snaps will mate up with webbing loops w/ snaps in them and hook up to the shock cord (so the whole thing is moveable). I drew up a diagram, the yellow are snaps and the red at the bottom hem is velcro. For the vest, I plan on modding the sleeves with zippers, and for the jacket just folding the arms up inside the jacket. Any input / suggestions would be appreciated!