Hood, just thought I'd let you know, I ordered my smooth stepper, it arrived as I left for a trip to a trade show, and I just now had time to set it up. I rescaled to 1:1 and the motion is now very good. I also have tried the tempest planner and the motion was phenomenal, I haven't cut any thing but air yet but it's looking good. so far it appears all of my motion problems were related to the wonders of windows.