Originally Posted by QuiltE
Feed dogs up and regular foot.
I recently learned there is a SITD foot .... kind of like a regular foot, with a "plough" that goes into the ditch. Adjust your needle til you hit it bang on.
I used to use that foot but learned that I can do better without it. To do so, I slightly pull the seam from both sides and let the needle run in the seam line. Then I can tug the seam to one side or the other when the seam direction changes. When I let go of the seam, the stitch literally disappears. Using the "plough" I was never able to get right into the seam. (Could have been me though - not the equipment)