Wobbless X mounts 1.0

I've been using my first wobbless X mounts for a few months:
http://www.thingiverse.com/thing:33053
But I believe there are a lot of people still suffering with the ribs on their parts. This time I made the anti-wobble spring over a mix of original github prusa v2 parts and MakerGear, for both bushing and lm8uu z guides.

Solidworks Files:
https://grabcad.com/library/wobbless-x-mounts-1

Update Jan 2016:
bushed_8mm_no_bending_pro_screw.STL is part of a big retrofit I'm doing on my