I've heard folks complain a little that kubota's are light for their horsepower. I just bought a used m5 and I'm thinking about having a dealer load the rear tires with rim guard it's about 700 bucks otd and will add 900 lb per tire roughly. I plan on doing quite a bit of heavy loader work so I think that will be very helpful. Any of you other m5 owners recommend loading the rear tires? Is it possible to load the rears and carry a ballast box and back when moving 3,000 lb pallets around the greenhouses