Thanks gents! I've got a good eye for keeping a line but the concept of prestretch was completely unknown to me....or really any kind of metal movement. These first panels have a good bit of wave to them, bandaided in part by the ample fasteners.
The forum is already helping me, as I've learned that prestretch can and should be used...now to figure out when and how much.
Cheers
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Ryer Alyn
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