I'm with Bowguy 100% on the advantages/differences. I just find it easier to go real soft with a trough call. For that reason it's something that I'll typically use first thing in the morning when I'm set up near roosted birds. Easier for me to replicate those soft tree talk yelps and clucks with the trough call than with any of my pot calls. Generally once they hit the ground the trough call gets set aside in favor of one of the pot calls. I tend to hunt pretty heavy timber and I find that the pot calls will cut through the underbrush better than the trough. If I have a gobbler working but he gets hung up just out of sight them I may pull the trough call out again to try to sweetly soft talk him in.
