RuthSalter, Cable surgery!
I've widened my shawl beyond its pattern, so was unsure whether to put a cable next to an increase at one point and dropped down later to add it. It never looked quite right though and kept bugging me. Realised I'd done it 1 row too high, so dropped back down and fixed it again.
I found putting a stitch marker on the yarn from each row as I pulled it out and stacking these over the needle made it easier to see what yarn was for what row on the way back up.
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