Can't comment about the leakdown because I always lower an implement to tbe ground or lock it in transport position for safety reasons whenever leaving the tractor. Many years ago I saw the results of not doing so. At a construction site a backhoe was left in the raised position, stinger extended during lunch. One worker decided to hide under the backhoe to be in the shade. Someone else acidentally hit the boom lever dropping the bucket teeth right into the forehead of the one under it. Pretty nasty scene. As to digging out stumps, the 16 inch bucket was not a good choice. You probably should invest in a ripper tooth. I recently got a Bro-Tek ripper tooth. At first when I received it, I wasn't too impressed because I could have fabbed similar or better for less money. But after using it to remove some trees, I like it and wouldn't be without one. One final tip, don't try to break the roots right at the base of the stump, move the bucket out some. If you work too close to the base you are pulling too much against the stump instead of a single root. That's another advantage of the ripper, you can get in there and work one one root at a time. Good luck.