I have 3 calls
-houndstooth 3 reed v cut- use this 98% of the time, put it in my mouth like a dip when I get out of the truck and dont take it out till I get back
-woodhaven basic slate call- use it about 1.5% of the time
-Black label crystal call- - use it the remaining .05% of the time(usually only when it is really windy)

Typically I use the slate and the v cut in tandem when hunting anything other than first thing in the morning. If I strike one, it is often with the slate call but I will bring him in to range with the v cut.

If I get under one still gobbling on the limb before daylight I only use the v cut because I dont wanna move my hands to get the slate call out of my vest.

I do not really think I sound any better on one than I do the other, I just prefer the v cut diaphragm because I can basically do it motionless