Took a BX25D for a short test spin last week and had some questions. 1. Is 1500 rpm really the idle speed and if so, why so high? 2. How difficult is it to attach the 3 point arms after removing the backhoe? 3. Does Kubota have a drive over mower deck for this tractor? ... I'd heard rumors of one. 4. Besides size obviously, what is the difference between the 54" and 60" mower decks - the brochure says the 54" is a "suspended linkage" and the 60" is a "self balance" .... never heard the term "self balance" before. 5. How easy (or difficult) is routine maintenance? ... looks as though you have to pull the two side panels to do much of anything in the engine compartment. TIA