Gene, the 24hrs can come after mixing but before stuffing, or after stuffing but before smoking. Do not do both, though. Snack sticks will stuff easier if you stuff right after mixing the seasonings, before the cure starts to bind things up. Fewer blowouts that way.
I grind first with my coarse plate, mix the seasonings and cure in, grind a second time with the coarse plate to further mix the seasonings in, then stuff with a vertical stuffer.