I installed the BAL 'crank down' stabilizers on all 4 corners of my HF 1800# trailer before ever beginning construction of my TD. Wish now that I'd installed 'em at an angle instead of perpendicular to the tongue but, they still provide good, solid support with absolutely no 'rock'n roll'. We wouldn't be without 'em. There've been a couple of nights when we parked just to sleep/rest, & didn't unhook from the TV, so didn't deploy the stabilizers, only the tongue jack. Even with a 1150# TD on the 1800# trailer, believe me, you can feel the difference when someone moves, with just the trailer suspension providing support/stability. It's not unpleasant, just not as comfortable (for us) as sleeping with the stabilizers deployed...
