The literature I have from King Kutter II says the TG-60-Y approximate weight is 690. And I wouldn't argue with your dealer, but when you say your 3-point doesn't lift it until near the end of it's range, I can't help but wonder if the implement isn't so tall that the lift arms are simply not going all the way down when you push the lever all the way down. When you do lift it as high as it will go, then start forward with the lever very slowly and see if the implement doesn't go all the way down to the ground before the lever is all the way down. For example, if the implement is on the ground, or as deep in the ground as it's going to go, when the lever is halfway forward, then pushing the lever all the way forward doesn't lower the implement any more, and when you pull back on the lever, it isn't going to start to pick up the implement until you get back to that halfway point (or whatever point you were at when the implement stopped moving downward). Whew, does anyone understand what I'm trying to say?/w3tcompact/icons/smile.gif In other words, I'm not convinced the weight has anything to do with where it starts to lift.
Bird