I picked one up today at BPS. It sounds a little different. The bellows on the end deflects the sound back at the reed. If you take the bellows off, it sounds just like a regular grunt tube. I used my BPS points so I guess I will play with it this year.

I do have a question about the Primos call. Why do they have that gay looking compass on it? Do you really need that thing for when you get lost in the woods?