For a Taskmaster Scout with a BK6N backhoe with subframe, are the 2 pieces supposed to be attached together in any way? If I install as in the photo and put the support legs down, when the legs are on the ground, they lift the backhoe off of the subframe and the subframe does nothing. Then what is the point of having the subframe? Do you still use the 3 point mount with the subframe? Or do the 3 point arms need to be adjusted downwards so that they push down on the backhoe to keep it on the subframe when the legs are put down? Also the round tube on the back is a bit narrow and tends to slip off off on one side or the other side of the subframe bars when the legs go down.