Well the slate is its own rock= it is shale that has been placed under heat and stress. It is then sawn into strips or sheets and then a hole cutter is used to cut the diameter disc you want. There are a lot of call making sites online that sell pre-cut slate, I use Brookside game calls for my supplies. The wood can be many types from hickory to exotics. So you can tweak them to get different sounds. I have a call that was made for me last year that is a copper surface...love it. I am not a call making expert, but I play with them some. PM if there are any other questions.
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Eric
If it's bleeding or on fire I can usually fix it; other than that we might be in trouble! IAFF Local 4416
Lt/Medic E73 "Keeping an eye on the South-side"
Fire-N-Iced Pro Staff Director
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