Did I get screwed? I bought a heavy duty sulky on ebay, was built by a metal fab guy as opposed to a mower manufacturer. I assumed he copied the design or something, but it looked real good. Anyway, here's the problem-I can't make it work. I've adjusted on it and have it set nice and level, tightened up the pivot and axles, but what it does is fishtail back and forth wildly. It seems like every bump or clump of grass one wheel hits makes it turn, then overcorrect back the other way, and I'm not talking super rough terrain, just regular lawn grass. It works okay on hot top where nothing hits the tires at all. Tightening made it a little better but still not useable. I haven't changed air pressure yet because they are full now, I think I could only go lower and make them softer, which should make the problem worse. I've tried bending my knees, leaning back or forward, nothing helps. I figured it would take some practice getting used to it, but I just can't use it. I have never used one before, so I don't even know what it's supposed to be like. It has two wheel barrow type tires on it with a platform between. The side to side pivot is mounted on top of the platform, and the up and down pivot is on the mower end. It's on a Ferris 54" wb that apparently had a sulky before, holes are all there. I know this isn't rocket science, it oughta be able to tow me around without trying to throw me off. Appreciate any pointers.