Brian, I would be willing to be a prepaid sponsor for a signed and numbered copy when the first edition is finally printed. This is how Ed Muderlak started the "Shooting Flying" book. I think this would be a great idea, easy for me to say with all the work resting on your shoulders.
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"Double guns are a sport and a pastime built into a beautiful package to which I attach myself when entering the great theater of autumn, those days now grow more precious because we are given so few".. Robin Lacy