I initially owned an SMI Delta Force (brake in a box), it is low profile and doesn't use the seat as an anchor point. The system worked flawlessly in my recent trip from Florida to Alaska and return (17,000 miles.) I recently changed to the Air Force One system and love, love, love it. The convenience of connecting the Air Force One to my Diesel Pusher was the reason for the change, not due to the Delta Force not working as advertised.
The brake in a box is a great option if you are anticipating changing vehicles in the near future or use multiple toads.
Of course, my opinion is just what I believe, I'm sure others have different opinions.
If you looking for a brake in a box, I have one for sale and will make you a great deal. email me at: howardmichaelj@yahoo.com.
Mike Howard
Retired Navy
