Drop the loader when you mow. You'll feel much better. It will remove quite a bit of weight, and lower the center of gravity.
Messicks just put out a video a day or two ago checking the weight on the front axle with the loader attached. It was on a BX and was in excess of 1,400 pounds on the front axle. Dropping the bucket reduced the axle load by 300 lbs. Dropping the loader took the weight on the front axle to somewhere in the 700 lb range. So, a weight reduction of 50% by simply taking a minute to drop the loader.
Here's the video.