As what was stated above , some States have regs in that stops the use of calling before the season. I believe most DNR/MNR's bank on the opinion that the more calling before the season , the harder it will be to kill a large population in the season. Turkey hunters playing the making them hard game is what it boils down too.

As Ma and the rest have said , if you want to do yourself a favor . leave your calls at home...BT