I have such a time seeing what I'm doing I use thin pins at the seams. I go slowly and sew over them, no problems, no breaks so far with a Janome 3022.
What's bad is after I'm done, sometimes I didn't line it up close enough when I pinned. Oh well, it's not being judged by anyone but me and I've decided since I still consider myself learning I'll live with those little creative decisions. :-)