I am finishing a jacket where I used all different yarns and fibers. Unfortunately, I did not watch the weights of the yarns close enough so all the pieces are in really weird shapes. The jacket-to-be is gorgeous so I don't want to rip out plus it would be impossible to rip. I thought I had heard some time in the past of a finishing technique where you could actually cut pieces to size and then sew together. Has anyone ever tried this?
I think you're referring to steeking, the technique commonly used in making fair isle sweaters. Not quite sure how you'd do it after the fact, but the general idea is that you machine stitch or crochet the sides of where you're going to cut. Then you cut. Hope this helps.