The best way to see how a spindle design performs is to use it. I still think the current version of my 3D printed spindle is too large, but I’m giving it a try anyway. I can spin fairly consistent yarn with it, but the single is slightly thicker than I get with a smaller spindle. I spin over a rug to give a little extra protection in case I drop it. No way would I take it on a walk. Spinning in the house also means that Missy presents me with a ball to kick, since obviously my hands are busy.