Well Mike in a unique way you kind of answered your own question. A custom box will give you the same resalts as a custom pot call does compared to a production call. The best thing about a custom call is that you have a lot more choices, than you do with a production call as to how it's built, what it's built out of and how it looks. There is a couple of things that make a custom call a little higher priced, and that is looks and what it's made out of for the most part, and it depends a little bit on who the builder is. The best advice I can give you is, if your looking for a custom call do some recearch on builders and if possible get your hands on one and play it or at least get ahold of the builder and listen to them run it over the phone. I don't know of any good call builder that doesn't stand behind their calls for customer satisfaction, if they don't they won't sell many.
Dodge County NWTF Chapter
WI. Youth Turkey Mentor