My #1 goto call is an acrylic Gaston Straight Barrel. Awsome call. I have also blown his open water and timber calls but I prefer my straight barrel. I have owned alot of really nice duck calls but I have not found one to nudge it out yet.
I have mine tuned pretty raspy and it will get very loud. It is easy to blow and does not stick, ever. Wet, dry or full of sand it never sticks. I have had it for 4 years now and like I said, have tried many others and none have impressed me more.