I am planning a build of a 6x4 router build, and am considering the use of clearpath servos. Has anyone else used these where TWO are required to drive both sides of the gantry to move X?

I really like them, and am pretty set on using them, but the design I want to use needs two motors, and I understand this can be a problem for the clearpath servos, both in set up and perhaps in running as they dont stall out due to having high torque, so if things got of square could it lead to more serious problems?