Take it off. I have a BX2230, so close to the same size. Any FEL you have mounted on any tractor will put the weight of the FEL out in front of your tippy front axle. Not only did you add weight to that axle, you transferred almost the same amount of weight from the stable rear wheels to the front wheels. Having it an inch off the ground still transfers the weight. The COG is only one aspect. The COG with respect to a rocking front axle is also important. You can (and should)
ballast your tractor to counter this, but it's just a lot easier to remove the FEL. The FEL makes a dandy emergency brake if you are going down a hill and lose traction. But if you didn't have it on, you probably wouldn't have lost traction anyway.
From my personal experience, I drove my BX down on my hillside set to do loader work. That means the FEL on the front, 50 lbs of weight on each rear wheel hub, and a 275lb bar on the 3ph. I had the FEL and weight bar both about 2 inches off the ground. My tires are also loaded, but no spacers. I parked it in a place where I felt it was sort of tippy which turned out to be between 20 and 25 degrees. I got off and pushed on the uphill side rollbar with one hand and fairly easily lifted the rear wheel off the ground. I then drove to the garage and removed the FEL, weight bar, and wheel weights. I drove down and parked in the exact same place. I could NOT lift the wheel off the ground. And that's why I will never again mow with my FEL on.
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