I have used the blindhem stitch a lot on my older Bernina 830. I set the stitch length at almost zero, (but not quite), the stitch length at 2 depending on the size of the piece. Smaller pieces get a smaller stitch width. I would just suggest that you play with the length and width until you get the look you want. I usually try to match the thread. In the picture attached you can see that I only used one color of green thread even though I had several different green fabrics. I only use a stabilizer if I am using a satin or zig zag stitch but I like to spray startch on the back side of my background fabric before I fuse my pieces on.