Since I started Turkey hunting , I picked up all the different types of calls. The mouth -call has become my overall favorite ( after a lot of practice ). A double reed raspy seems to do the trick even in the fall or winter. Listen to the different calls the turkey make and try to copy them. Don't worry about being exact with the sounds..I've heard turkey that sounded more like a newbie hunter that really surprised me. The one sound which I use the most is a cutt (with a bit of emotion ) along with a soft yelp. Mouth calls are not expensive and in the field there's little or no movement that could get ya busted.