Originally Posted by
ArchaicArcane
The reason your spool was bouncing up and down is that it was a cross wound spool. They prefer to have the thread come off the top (like a serger cone) than to wind off with the spool.
Funny you mention this Tammi. I was using a large black spool (not a cone, just bigger than normal spool) last night on my 411g and the thread kept wanting to wrap around the base (and snap). Took it off the spool holder and placed it on the base, in line with the first guide, and no matter how fast I sewed, no problem at all. The thread can unravel easily and just goes straight up.
Inspiration was from watching my 96K41 with its non-tangling ways.