Yes. Dave's offerings are outstanding. We still haven't figured out how he manages to put as much craftsmanship and value into a dang UQ shell, let alone the rest of his ever growing line of shells, tarps, hammocks, socks, as I write this he's making something else, new and cool.
He's also an extremely nice guy to meet and work with.
I'd go for the metered down, sold in 1oz or whatever increments you require, in individual bags, unless dead set on re-purposing. Only makes it probably 100% easier
I think Fronkey may a have thread or video on a "wet" method used to get down into baffles with less fuss and muss. If you find it, pleas link. I'd like to take another look myself, since I have one of Undergroundquilts.com 3/4 UQ Shells myself.