Originally Posted by patsyo56721
I have been told that sewing over pins can cause the timing to mess up.
Yep. I've also heard horror stories of where the needle broke and a piece went into the machine and actually wrecked the machine. I wouldn't have believed it, but I know the gal who told the story and I trust her. So now I make sure to remove the pins before I sew over them, or at least I do 99% of the time.