I think the best chance to get a bird is to roost them in the evening if possible. When scouting always look for scratching, feathers,droppings around trees which may indicate a roosting spot. Get set up way before daylight and be ready when you hear them gobble. When they are mating they are most vulnerable so if I were you I wouldn't worry about making mistakes with your calls. I have heard some nasty sounding turkeys gobble, cluck and chirp. Whenever you start to call don't stop if you think you've made a mistake. Be sure to use a good set of decoys and start your calling softly just before daylight. Rememberwhat was saidin another post, minimalmovement is the key.
Good luck to you and keep us informed.

Spudrow from Mo