....
Near as I can tell the servos are fine (and plenty powerful) on mine, but
the encoders are crap by today's standards. Heck, two out of three of them
fell apart. The third one might when I get around to taking it off. Its on
the top of the spindle screw and its awkward to get to, but away it goes
when I get there. Not enough resolution either.

FWIW, i really like the usdigital.com encoders. Get differential units
around 2000 count

Karl