Back to the old debate of axle mount versus seat post mount. Really, you can have an ill handling ride either way. The one big secret, and it's not rocket science, to a good handling pusher is simply keeping your center of gravity below the line between your rear wheel and hitch point. Seat post mount makes it naturally easier to accomplish this. With my pusher, I can lift it up with one finger under the u-joint and it will self balance without falling over. If your center of gravity is above that line, your trailer will immediately fall over on its side. Long story short, top heavy trailers create an unstable ride.After looking at these plans. I wonder if it would be better connecting to the axle. Pushing behind the rear of the seat seems like it would be hard to control when turning. Any thoughts or has anyone tried connecting lower?