I think Bertholy may have intended the "pipe" to be sold as a training aid but I have not found any such on the net yet.
It is unevenly weighted with a heavy end and a light end. It is mentioned that the "weight pull" can vary from 2.5 to 30 lbs with 2.5 when you lod it in the middle. It is clear that the variable weight is actually a torque so I assume it weight 2.5 lbs but I have no idea of the distribution.
Like McIrishman I sent email to the pro in Canada about materials but have not heard back. I might take a day over the summer to go up for a lesson if he's still in practice there.
Peter
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