Don't go too light or you wont get proper ignition.
TSS is a bit too much of a good thing for quail, especially if you value your teeth
Why not just run steel 7s in a 20ga?
You know I'm a big Tungsten fan, but I just don't see it's use in wing shooting smaller game. I can see the point for big ducks or geese, but it's still too expensive IMO. I've never struggled killing ducks with steel as is.
Dang nice patterns.