Of course it is not a replacement for knowing how to use the machine. What I was pointing out is it makes the operation of the machine a lot faster, easier and exceptionally consistent. I am quite happy with the positioner motor and thought I'd let him know they are out there as an option.
I can sew just fine with a clutch motor. It is what I learned on. I also replaced it for a servo motor because they are quiet first and foremost. Once I had one I found I got a lot faster at the machine by turning the speed down some.