I am not an expert, but I think most of the custom call makers will give you a lot of help picking the best call for you. I finally broke down and ordered a custom call from Josh Farley and he was awesome. I wanted to use wenge in the call so he did a prototype for me and it sounded awesome. I asked a lot of questions and he even sent me a " how to " youtube video. Great call, great experience and a great guy.
Al Baker