Question directed to those who are really good with sewing machines and sergers.
I got a very fine woman's cashmere sweater to repair that had an eyelet seam (seam attached every inch or so...the tension created little elipses along the seam so whatever beneath it would show as an accent). Lovely idea, but didn't work on this very fine, very soft cashmere: At areas of tension, (the back of the neck and shoulders, particularly) the yarn tore, reluting in huge holes right on the seam. My solution was to turn the eyelet seam into a traditional seam, which I WOULD have done on my serger, but that would be more bulky than I wanted, AND my serger tends to stretch knit seams. I would have done a straight stitch on my sewing machine, but that tends to have no elasticity. I ended up doing a backstitch seam BY hand (surprisingly fun to do, actually) on the entire thing. It looks great and took less time than I expected considering how many TINY backstitches I had to do, but my question is.. is there a way to do serger hems without them stretching the fabric (outside of using interfacing) and is there a straight stitch with elasticity? Any sewing gurus out there?