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I found this website that does a *good* job of explaining the difference in how certain spools are wound, which affects how the thread comes off the spool. I think some of the solutions offered there eliminate the need for a net on spools of thread (as opposed to cones).
I found I prefer a cut off knee high panty hose piece to a thread net. I ran into tension problems with the net but none with pany hose
APQS Millenium Longarm with Intelliquilter