Originally Posted by Chapitre
I drove 12k miles or so overall with them on, and never noticed a problem with stability.
Good - but just be aware that you have less margin of stability than without the bikes. When a tug/trailer rig is at a speed near the limit of the trailer's stability, it will feel fine, but sway could be started by an emergency avoidance maneuver or a gust of side wind. It's hard to know how much margin is available - I don't know how fast our van could tow our current trailer before it became unstable, and my concern it that I unknowingly come too close.
(Although I have had the trailer at a too-high-to-mention speed once, so I'm not so concerned