What reed configuration is the best for someone TRYING to learn how to use a mouth call?

I have tried mouth calls a few years back and never could get the hang of it with them. I most likely gave up on them too soon.

Also any tips or youtube videos you would suggest to aid in the learning process?

I am swithing gears from deer hunting to spring turkey hunting and have alot of time to try and get this figured out. April 16th is a long way away......