They aren't any good.
But I am certified to handle these things.... I'll come get themfrom you with my special rubber gloves. I won't even charge you labor... just millage... I always enjoy helping a fellow hunter out of a jam....
Here is my favorite.
I use a bottle of Moore's Marinade (wal-mart super center usually has it). Dale's is more readily available and will work in a pinch.. but moore's is better.
Take a good 1/2 cup of brown sugar and a can of crushed pinneapple.... let her sit 24-48 hours.
I use the same marinade on doves, ducks, geese and whole boneless doe/fawn hindquarters.
The key, like with any other wild game, is in the swiftness of field dressing, and the temperature control of aging... if frozen, then the quality of the wrapping to ward off freezer burn.