I’d appreciate some advice on best tire pressures to maintain for my recently acquired B-2400, equipped with FEL and MMM. The ground around my place (including pastures to mow) is somewhat rocky and hard-packed, not soft or muddy. According to the owner’s manual specs, the front tires (23 x 8.5-12, R4) require 22 psi and the rear tires (12-16.5, R4) require 18 psi. The rears now have liquid ballast installed. With ballast, should I still try to maintain 18 psi in those rear tires or should they be changed to a different psi level? The manual also says to keep the front tires at “maximum pressure if using a FEL”. Does that mean inflating them to the full rated psi level marked on the side of the tire rather than at 22 psi?