I am looking at upgrading my stepper driven system (currently Ahha), does Mach 3 make the steppers constant contour instead of stopping at every line (jerky slower movement) like the old Ahha does? I want to upgrade to Mach 3 so I can run Windows and have a modern computer with networking and a USB port. Also the old Ahha Artisan didn't constant contour very well. Maybe I'm spoiled from our large servo driven system (Fagor).