I just purchased the ATS Commander. Needing someone who has this unit to provide a little feedback on how and when you use this unit (under what circumstances) and at what levels do you set it for the following: daily driving, street racing, towing heavy????? Have you noticed any negatives using this unit? Under what conditions? If you have a built transmission, will this unit suffice as a light duty inertia-type brake (downhill mountain terrain with heavy load behind you)?? In reading the propaganda that comes with the unit, it would appear that you should be able to descend down a considerable grade with say 15k lbs behind and pushing you and you have it locked into the TOW mode and you shouldn't exceed say 50mph. Is that correct?? Tks for the help. 
