Mr. Sneed's call construction is much different than any other calls I own. Was surprised when I first received them. The two piece, glued together construction is not as pretty as other custom calls I have (which maybe turns people off since they are not expecting that?) either way... I can't deny they sound great. I have both a slate and a green glass in my vest.
* edit: Maybe I'm one of the ones who got the lacking quality calls you're talking about. They are downright the ugliest calls I own, but sound the best. Drilled holes in the bottom are unfinished, splinters visible all inside. Sides have small gaps glued to the base, etc. I don't know how such good turkey sounds come out of it... but it works.