I've tried a walking foot specifically for SID and didn't like it at all. I also tried a foot with a seam guide (can't remember if it's the #5 or #10 for Bernina) and didn't like that either. I finally tried an open toe foot so I could actually see where the needle was going and that was perfect for me. I guess I need to see where that needle is going and be able to make minute adjustments with my finger tips. I'm happy with the results......but I'm a bit of an odd ball. I think the real trick is to keep doing it until you have the muscle memory.