I have a 6 ft. 3pt Agrevere/Howse disk I bought 4 yrs. ago that I have a problem with. If I set the cutting angle anywhere past the 2nd position from neutral it makes the tractor crab sideways. All gangs are set/spaced evenly, the draft arms are level and the sway chains are tightened equally. Everything is set "according to the book". Disk in my opinion is not heavy enough. D frame angle iron. Works fine in #2 position but does not cut deep enough. Pulled with a 5105. If I can run across a good used 10 ft. disk that takes a hyd. cylinder I will buy one. This little disk is a pita to change gang settings.