That's secret information held in a special vault in the HOB "Workshop"!
Actually, if you go to JC Products webpage, they have some of that information available. Many use a bladed LV003 brass reed, a LV025 and LV002 in combination, or a LVDR025(double reed). Most use either a medium length 2-3", 1/2" or 5/8" bore. Tuning to a raspy, busy sound is the ticket.
Different woods and reed holders will also affect the sound.
You can find small quantities of reeds at AllPredatorCalls website, they are a sponsor here at PM!
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