I like your phrase LOL :D I never heard of only a partial bobbin either.

I wonder why she says to only fill it 3/4 full?

Like someone else says, I want mine FULL - each bobbin is only about half an hour of steady sewing and it seems to run out too fast, as it is.

Maybe it is a tension issue that she's trying to get around? What kind of machine is she using, can you tell?

I use Bottom Line from Superior Threads - it balances beautifully with all thicknesses of quilting threads - 30 down to 60 I use, and metallics and rayons, plus it's so fine you can get miles of it on the bobbin so it's lasts for ages. :D

Me either!

I know that my machine is not happy with the last 10-15% of the bobbin. It starts rattling around. Might be her machine is not happy with the first part. Sounds to me like it is specific to her machine.

Too funny! I'm definitely not FMQ'ing w/a full bobbin!!!

I've never heard of it before. Never had a problem using a full bobbin. OMG, did I break the rules??? LOL

I've heard of this when filling the bobbin with monofil. I've tried a full bobbin and one 3/4 and the 3/4 full one works better on my Bernina.

Older machines do not have an automatic bobbin stop, so it is possible to overfill those bobbins. That thread just goes to waste if you have to pull it off to get the bobbin in the case, so I'd rather have my bobbin a little under than over. That said, I get as much thread as I can comfortably fit on my bobbin, and I load up about 20 of them before I start.

True - I learned to sew on an old Singer and it was possible to overfill bobbins if you were not paying attention, and it caused problems.

well others already said it but i figured she meant over full, most of the auto winders I've seen don't put as much as they could and I don't like that either
I don't want to be accused of "not having a full bobbin!"