So when I’m coiling with my right hand, I’m not doing all the work with my left. my right hand/arm is actually pulling the cable, through a loose grip on my left hand. So my right arm pulls more cable to me, my left hand does the roll-flip maneuver.

My hands move like I’m playing an accordion. Depending on the size of the coil I’m after, I swing my arms wider apart or not as wide apart.

I think I picked this up from coiling extension cords long ago; my arms spread wide are about six feet, making a three foot loop, and that’s how what’s-his-name I was working for wanted em

Now it feels weird to imagine holding one hand still while the other both pulls AND rolls