ArchaicArcane

Hey Joe, that's not strictly what I said. The fact that they say cones are cross wound and spools are stack wound is all I said was specific to their thread. I have all manner of thread that's CW on spools (and I can't decide if Aurifil is a spool or a cone. It looks like a spool, but acts like a cone, and it's CW. )

To tell the truth, a lot of people never really notice a difference between having the CW thread on the vertical pin vs the thread stand. I noticed it because if I get sewing fast on the featherweight with CW thread on the pin, it jerks around and then it flies off the pin.

There are a few things that I think do this:

• CW on a vertical pin. You can see "Dr. Bob" demonstrate it. It herks and jerks about instead of winding off smoothly, because the cone wasn't meant to rotate. (Joe, I know you can't watch YouTube Videos, unless you downloaded the Firefox DownloadHelper plugin that I suggested - is this true even if you click on the "Gear" at the bottom of the video and set it to 144p for the resolution instead of the default of 480p?) http://www.youtube.com/watch?v=I1jq9QoP9jg
• Poly thread has a tiny bit of stretch, so it's a little like pulling on an elastic and letting go
• The arm on the FW is so short all of these movements are sort of exaggerated.

I demonstrated this to a lady in our sewing circle. I put a 1/3 of a spool of Aurifil on the vertical pin and wound a bobbin. This let her see it climb up and down the pin before it finally jumped off.

My pleasure! It's the same thing I experienced. All of the sudden like magic my weird little tension issues vanished.