Do you prefer your software to control spindle on - off as well as rpm? Or would you rather a switch and potentiometer? In the past I have always used manual but setting up a mini raptor and unsure of which router to take. Definitely easier to setup the manual mode but seems convenient to have mach take care of it. I have the teckno spindle that is 18k-24k but fooling with cues I see no need to slow it down. Maybe if I happen to cut a part on the tale for other purposes.