Parametric spring battery holder

I really like the style of the "High current 18650 holders with integrated spring" that I've seen a few makers design, one prominent example linked. The only downside is that they require modifying brass standoffs to work as the contacts. Enif came up with a brilliant solution to this with his Flexing Battery Holders, which are designed to use a couple of wraps of wire for the contacts instead. They have a few other downsides, though, specifically that the wraps are tricky to get to, and the customization parameters don't necessarily work the same way you expect them to. So, adapting my improvement on chrisspen's flat spring generator, I rebuilt enif's flexing battery holders to include my new desired functionality.

I would like to believe that the modifications I have made to this thing are extensive enough that enif's holders can be considered an inspiration instead of this being a derivative of them, someone please correct me if I'm wrong.

Considerations:
-YXC's holders featu