Remember that no two geese sound exactly alike, so goose calls do not need to sound exactly like you (or some expert) thinks they should sound. The main thing is is to use a call with the right tone, and use the proper timing of the call, along with using the right goose vocalization to get the geese to do what you want.
I YOU HAVE QUESTIONS- ASK ME. i ONLY HAVE 50 YEARS OF EXPERINCE CALLING WATERFOWL, 4 YEARS OF GOOSE RESEARCH, AND ABOUT 20 YEARS AS AN OUTFITTER AND GUIDE.