From what I have read through the scattered posts about using Gecko or Rutex servo drives with a Clifton 9.99 precision motor is as follows:
To use Rutex if the encoder you re using isnt the best.
Go Gecko but use USdigital encoders.
The main problem resides in the error handling of Gecko 320 wich is 127 something, and because of that one has to use a good encoder like E2-250-250-G USdigital to avoid problems.
Did I made my homework properly?
I got my cliftons and now looking for a drive. Rutex way will cost $502USD plus S&H ( 3x R990H servo drives and 1x R990mb morherboard) and Gecko way is 3x114=$342USD plus S&H.
Budget is limited.
Meanwhile I have to research into PSU options as well.
Konstantin.