Originally Posted by brentcn
Currently, only Axis and the new Atlas/Ludwig pedals have decent U-joints. Weak U-joints are also the reason the slave pedal feels sluggish.
Trick pedals just recently came out with a replacement U Joint axle. I know they have one for the DW's and also a universal one. Something to keep in mind later.
I have a Trick double pedal, and their U joints are just so insanely smooth and well built. No Play at all.