Julian Dyer mentioned some "physical" tests that could be performed on a
Duo-Art. It would be wonderful if we had a guide to testing the Duo-Art,
which should include "physical" tests like Mr.. Dyer mentioned as well as
roll tests.

I have a Stroud that looks like some alterations have been made. I have
written a number of guy's and right now some believe it is not an
original tracker bar and some believe it is. Well I'm not sure, but I
know I have a lot of work to do before the work starts. People like me
need a guide to help us understand what is expected of these systems.
I'm also going to need help deciding what is going on with the one I
have. I'm waiting for pictures to come back and when they do I'm going
to set up a web site so some of you pros can help me decide if this
instrument is original and if not what must be done to make it so. In
the meantime maybe some of you guys can work in connection with Tim
Baxter to create a definitive test roll that could be used after some
physical test are administered.

Sam Harris - Greenville, North Carolina
sam@greenvillenc.com