Hi everyone,
Because working on the same puzzle (Octahedrons) gets very boring after a while, I decided to take a break for today. I've been re-working my Mental Puck puzzle, and in the process came new 3D printed masters, new molds, and new techniques for creating the skewb pieces. And the end result is good

The new Mental Puck's have greatly improved rotation, and many alignment issues have been fixed.
Here is the original Mental Puck for anyone who cares...
viewtopic.php?t=7616
Now time for pictures and videos.
Demonstration Video
Side by side Mental Pucks
Fixed alignment issues