I just decided to look, and I can buy the hat channel locally for pretty much the same price at a home improvement store and then I don't have to try to ship 11 foot long sections. (They come in 12 foot lengths at the store, not sure about the place I am buying the GG from.)

I should end up with something kind of like this only my channel will be running parallel to the joists to save height...



This method adds Decoupling, Mass, Absorption and Damping, which is all 4 of the 4 aspects of soundproofing.

Farewell - June 4, 2020