I used to SID all the time, it was the only quilting I could do, but I agonised over the sections where I wandered out of the ditch for a bit. Then I found echo or shadow quilting where you sew parallel with the seam. It's wonderful! and much more forgiving of any mistakes. I can use my walking foot as a guide, and move the needle sideways to make a larger or smaller echo. (And I never quilt without quilting gloves -- it takes all the strain out of moving fabric and my hands don't ache from the effort.)
Gspsplease