Who was it that recommeded HS diaphram calls? Dean, maybe? Our local Bass Pro had them on post-season sale, as well as other brands, for really deep discounts. I picked up a half dozen HS calls, and some Primos and Quaker Boy diapham calls. Enough to practice with until next season and still have quite a few left over. So I know about washing and storing used ones in the refirgerator. What about unused calls still in the package? In the refirgerator or out? Does it matter?