Jon, I am about to buy a motor to speed up my Z do you still suggest using the 90:1 motor from amazon that is linked above? Or did you get the one that is further up the page that is 131:1?
Edit: Does anyone know if someone has tested with the 90:1 versus the 131:1? If so is it worth it or does the 131:1 speed it up enough?
Thank you, lots of questions.