I watched a Leah Day video in which she says she changes her needle after every other bobbin change. Do you think she'd send me her 'used' needles? I use mine much longer than that. Seriously, I was FMQ yesterday on a queen sized quilt and I used about 6 bobbins in just a few hours. It wasn't a new needle to begin with, and I have no intention of changing it now. I think it still has lots of stitches left in it. I'll change it when I notice that it's dull.