I think that there is a different call for each person. Since everyone is built differently, and there are so many calls, what sounds good when you blow it...might sound like a Kazoo when I blow it (then again...most calls sound like a Kazoo when I blow them). Everyone's internal grunt is different..some deeper, some higher. Everyones cheeks are different, different size mouths, diaphrams etc etc.

The key is to buy every call made....hunt a lot...and whichever call the ducks respond best to...hey..thats your fit!