I feel your pain, I hate when that happens. I don't even have a Bernina, I have a Janome and it happens to me too. I don't like using leaders and enders because I don't typically chain piece so it's definitely a pain. I sometimes just start right on the edge and go ever so slowly until it gets past the hole. I have an automatic thread cutter so pulling the threads back is great if you don't, but not so much if you do. I hope you find your single stitch plate.