Stayed a while at a marina in Charleston last year and saw a boat there that
had attached small slide channels on each side of the boom. The awning slid
into the channel, had tent bows (like shadetree) and then attached to the
lifelines. We're getting ready to make ours using that design. I have a
couple of pics if you'd like to see them.
Shadetree is, as I guess you know, pretty expensive. Plus they won't sell
any of their components.
Jay

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