Get there very early or hunt during middle of the week, to avoid crowds and get a open spot. Also try going several mornings soon and scout for a roost area. The little fields get hit hard, so may do best to focus on totally wooded areas. Don't call much or at all after getting a gobbler to respond at Cheatham. Turkey hunting is tough there, but there are quite a few.
Send me a PM with your cell phone #, and I'll give a few other tips.