I shoot 90% of my birds with no decoys out, but when I do use decoys I have Avian-X.
I'll go against the grain here and say that most times I'll run a single Jake over hens. I like to keep them guessing where the "hen" (me) is. I find they hang up less often, as they're actively looking for the hen -- the single Jake gives them something to look at and get pissed off about.
-Nick