Thank you, all, very much. I won't be back to the studio until Monday. I'm hoping my stretchers haven't popped by then! I stretched the canvas only finger-tight. Lately they seem to have been coming out too loose, so, maybe, I over-compensated on this one. Augh!
When I left the studio the fist coat of gesso was almost dry and the stretchers had bowed in about a quarter-inch, at most, at the center of two sides and a little less than that on the other two. On Monday, I'll unstaple it and then re-stretch it, as suggested. I will let you know whether, or not, the operation was successful.
You know when I read, or otherwise learn, about how to do something, somehow the warnings don't really sink in until I encounter the problems myself. And, so, now I know... long stretcher strips really do need bracer bars. I don't know why I'm so hard-headed.
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