I have been practicing for over 30 years and continue to practice. Here is a tip I never told anyone "super secret" Lol. That's an inside joke. Master your turkey calling with diaphragms first. You will find it easier to transition to coyote and predator sounds. You will find it easier also if you can shape the call to your pallet. Everybody's is different. Things to try: Smaller frame, Thick tape, Thin Tape, Bending the frame. You will go through a lot of calls until you find the correct recipe. The tape has to seal around the roof of your mouth. Place the call as far back as possible as it will take less air and mouth/tongue movement to get the desired sounds. Most guys place the call too far front and blow way too hard. This often results in vibrating lips. You ever hear some say my lips tickle or go numb when I use a diaphragm? That's why. It is not back far enough. I could go on forever but you get the idea. Then practice a lot. Never stop.
