I think Hunter Specialities made the best sounding slate call i ever used,and i owned and used a bunch. This call was the H&S Strut-double slate over glass. They quit making this call about 8-10 years ago? There is a tone to these,unlike any other calls i have used,slate or glass. I have hunted turkeys for years,and used a lot of different turkey calls,makes/models,and killed turkeys,using many different kinds. None could bring in turkeys like this call. If you are lucky enought to find one of these,buy it. I own three of these and wouldn't trade one of them for the most expensive and 'proclaimed' best turkey calls made...This is my opinion about these calls,and i understand that someone elses may be different...Good luck with whatever you choose.