I just purchased a 2 wheel sulky make by Havener Enterprises (http://www.mowersulky.com/SW2000-10.jpg), this was purchased from a private sale. The problem I'm having is there is way too much play where the arm attaches to the hitch, connecting it to the mower. This is causing me to fight with the mower to try to keep it going straight. I just purchased the hitch from Havener. Prior to the 2 wheel I was using a 1 wheel velky with no problems, trying to eliminate the stripe from the single wheel. Anyone else had this problem. I've tried to call the company but they are closed on the weekends. I am using a Ferris 48" hydro.