sorry don't know what the identiflyer is......never seen one
but
Gag reflex is something to over come. Try placing the call more forward in your mouth......stay at it and you will master it....but if it gets to be too much well it is not the end of the world......
Easiest call to master is a box call. I play mine - all of mines as I ahve quite a few......while listening to Wild Turkey Talk on the several CDs I own. Even listen to them int he truck drivin form hunt to hunt.
Next easiest is the Pot tho some may disagree... WEez all gots an opinion here!
But practice - practice -practice.....then and then do it over again.....
Tip for you - once you are out in the woods and do hear a hen - try to mimic her note for note......nature is your best teacher!
JW