I like custom calls, too, but use a Haydel's Double reed at times. My main GoTo call is a Taylor Made (Alvin Taylor • Clarenden, AR • deceased 1 or 2 years ago). It never sticks and always sounds "ducky". My other call around my neck is a Big Guy's Best SweetTalker (Mike Keller).
I collected custom-made calls at one time and never hunted with some of them. Some just don't sound worth a flip (at least not down here in Arkansas. They may work up north where the calling style is different.) I've shot a bunch of ducks with a $10.00 WalMart call and even some free ones from DU memberships.
One of the biggest differences is who's behind the call.
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Romans 8:28