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[BKARTS] Plough Problems

Hi Bob... I plough (and give any edge treatment) either before sewing or after giving the spine its final shape. The former will yield a very slightly irregular edge, the latter glass smooth.
Ploughing before or at a point between the steps of sewing, rounding, and backing runs the risk of throwing the trimmed edge out of square to the shoulder if the cut edge or the line of backing is even the tiniest fraction out of alignment and so very great care is called for.
And yes, it is common for the spine fold of the last section of a backed textblock to want to tear away (from lack of support at the outside of the shoulder) and so one stops as soon as one has cut through the leaves to the "cut against" and then uses a sharp knife to cleanly cut the spine fold of that last section. Best, James

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