Hawkeye, I've read all the commits and they are right. It's hard in the fall. I like to spook them and then call them in. Also find out were they are feeding, most of the time in the fall they don't travel to far.
One of the best ways we found to hunt them in the fall is using the Kee Kee Whistle. We had 6 guys hunting turkeys last fall and were successfull on 5 of them. The Kee Kee Whistle sounds like a little turkey chirping looking for the rest of the flock. With suprise we sold over 30 of these calls last year to fall turkey hunters and they all had good success.
Below is a picture of our Kee Kee Whistle. Down south they use them to call in some breeds of ducks.