All right now you've done it; I went and read the book. The book is for JD Model 40 with 411 or 412 plow(s). Second correction is my 'trash kicker' is really called a jointer. Your changing the length of the top link is the first thing they talk about Second topic is the setting of the coulter(s). Make sure its free, sharp and running 1/2 to 5/8 to the landside centered over the point of the share (or where the point is suppose to be). Third topic is width of cut and how the land the plow with rotating the cross bar crank to set the cut. Lastly they set the mast location and check it for vertical. All this being said and done, looking at the picture of a double bottom behind a Model 40, the blue tractor needs the tires spread for the 2 bottom. Without the extra width, it pulls to the highside when the correct cuts are set. The coulters probably weren't happy with the angle of attack. SteveV