Brining Turkey Drumsticks? Don't know what else to ask.

My best guess, and I don't know for sure, but I would guess that any turkey drumsticks you would purchase in a regular grocery store would come from regular commercial turkeys that are already injected with that "flavor enhancer". Unknown is whether the turkeys are injected all over, including the drums, or whether the injections are limited to the breast area..... Sorry, not much help here..... any way you could do a trial run and brine/roast one drum between now and T-day? .