> >I might add that you are being very generous with your numbers. I doubt many >compression-crowned soundboards have anywhere close to a 40' radius on >intallation. > >Del I know. I went along with Ed's 40' radius suggestion to illustrate that even under that unrealistically optimistic scenario, the idea that a rim could buttress a crown "arch" was fantasy. The realistic figures are, as you know, much worse. Ron N
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