Like Willie said, you need to find a few calls that you have confidence in. I try to take a glass over slate, a glass over glass, and a slate over glass for friction calls, and a few diaphragms that I can make any call I want when needed. Itake that many callsfor R&D purposes, but it's certainly not necessary. If I were you, I'd get 1 call you really work welland a handfull of strikers to go with it. Practice up, try different strikers to get the different sounds. It's always good to become skilled on a diaphragm for the hands-free benefits of working close birds too. But the MOST IMPORTANT thing is practice, practice, practice. You have to know that when you try to make a cackle, it will sound like a cackle.