boy this thread is all over the place!! but a few comments:

There are/have been at least 3 scaleless/partially scaleless bps in existence. I assume the are all still alive.

It think it might well have heat sensing ability still from the skin on the nose, of course it doesn't have heat "pits" because the pits are created by the scales themselves.

As far as I can tell from my experience there is absolutely no recipe for making non-wobbling spiders... even if you start out with one that doesn't. Spider combos are equally likely to wobble.

Justin