Me: "I'm so excited; lets do this!"
Also me: "Um, how do I tension this thing?"
None of the Z-bars that came with the Sparrows set seemed to offer enough core control to keep the pins set during the counter-rotation phase of setting the spool pins. I fooled around with the included tensioners for a few minutes and here's what I came up with. It worked really well:

By having two opposing Z-bars, it allowed me to finitely control core movement in both directions, thereby keeping those pins set. Maybe someone has figured out this technique already, but I thought I would share what worked for me.
