We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Those plastic injectors are worthless crap. The herbs and spices jam up the injector holes, and the whole thing falls apart after a few birds.
We then made do with a large-apertured medical syringe which one of our medical friends had (which I hope was clean), but this is really the cooking tool that is needed: the stainless steel Bayou Classic with one needle for herb mixtures and another for marinade (photo below).
Many folks like to inject a turkey with sherry or cider.
I bought a couple of those for my cooking buddies. (Update: I did, and got one for myself too. Would be scary to see a nurse approaching you with one of these.)
This year, I am going to inject those big SOBs with a warmed mix of sherry, butter, honey, and herbs under the skin and deep into the meat. That can not be bad. The Indians did it that way, didn't they? Of course they did - when they weren't busy scalping, raping, and torturing their neighboring tribes.
Why would you do all that to a turkey? If you do not like the taste of turkey why the hell are you cooking and eating one.
Buy something you like and prepare it in your preferred manner. If you have to doctor it up that much there is something wrong with your culinary receptors or what ever it is that indicates good taste.
If your taste buds are that screwed up I doubt you will ever enjoy a real home cooked or style meal.
"The Indian's did it that way, didn't they?" Sure. Except, of course, for the sherry. And no cows & no bees yet, so no honey or butter. No cool stainless steel Cajun injectors, because no Cajuns yet. Herbs, though. They had those.