RE: slate calls
The thing that you need to understand about Pot calls is that they come in many different materials and at different prices. What you will find is that calls that are built out of wood tend to be higher in price and a much better quality in sound. If you spend money , you need to ask yourself what do you really want to do. Save money and buy a forgein made Pot call that is cheeper or do you want to spend that extra and have a call the sounds good and will last.
The next step is do you want a call that will give you a variable in sound and maybe a weather type if you run into wet days. Alluminum tends to have the best sound on dry and will work fine on wet days. Finding a striker that will work and make your call the best at sound is one important thing to do after you get your call. Do not rely on the strikers that come with a call. Carbon is a Volume and wet weather striker, somethig you should have if you need it. Ash , Hickory or Cedar are the best sounding strikers you can fine for dry days and a percice yelp on Alluminum.
Out opf all pot calls Alluminum is the only material I like. Yes the others will work but Alluminum has a pitch that I can not match with Mouth calls and boxes.
Look the calls over and decided what you want before you pay for a call...BT