I have had my 4thread overlocker for a while and used it regularly to finish off seams which I love.
I often use scraps of the fabric that I going to sew with to fine tune the stitch.
I have just started using it too sew knits. I was under the impression, maybe mistakenly that could use just the overlocker to stitch the seam. But results are terrible.
http://farm9.staticflickr.com/8027/7660210896_cfd5ffaa0d_c.jpg
This picture is without any stress on the seam. I have simply turn the shirt out the right way after stitching.
The stitches are overly visible at the seams. What am I doing wrong? Any help is greatly appreciated.