new mag timing box not a buzz box

has anyone used spud millers new mag timing box it is a neat deal it is not like the normal buzz box and does not give false readings check it out and let me know what you think www.fuelinjectionent.com thanks craig

 

that is an aircraft buzz box..spruce aircraft inc. sells them..I have both the zig/mallory and this one, I still use the mallory one..Dave
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