jwhitetail...
Have called in fall birds using clucks, yelps, gobbler clucks, gobbler yelps and purrs.
Note: Kee kees, and Kee Kee runs have worked best for me when I have successfully scattered a flock.
If crops are in the fields and I am hunting burn boundaries, I don't used decoys...my most consistent and successful set-up.
If hunting burn boundaries and crops are harvested, then I have often had success with decoys. Note: Gobs have not in my experience come to the hen decoys. Jake decoys with an installed horse tail long beard have proven effective.
If hunting the woods, then I normally hunt the area to assess activity prior to employing any decoys. If I find gobbler activity, then I am going to try the dirty bird this year.