I had about 5 chains to go and the thread came off the bobbin. I have been a fan of post shuttles mostly but I think I may be changing back. If you remember, I just got the Pop-A-Bobbin shuttles a couple of weeks ago and I have been working with them trying to adjust. This morning has pretty much sold me on them. And I mean the Pop-A Bobbin in particular.
The left photo shows just how little thread is left. I think it is just enough to sew in the ends. I was able to use the shuttle to finish tatting though. With any other shuttle, I don't think i could have, but look at the right photo. What I did was pass the end of the thread through the little hole in the bobbin, then I trapped the end in the hole with the shuttle pin. It cannot come loose and I was able to use almost all the thread without finger tatting. What a lifesaver!