I had to change my order on the Maxuum 125 to the Maxuum 125 Pro model. Dealer/Case ih still gave me the deal without the 3% surcharge since I originally purchased before Apr 1. I needed the pressure/flow compensated hydraulics for a new sprayer. The 1200 gal sprayer, with 85' booms, requires low flow hydraulics. The low flow hydraulics are need for boom control. The booms are unfolded, can be raised/lowered and the the ends of the booms can be raised independantly depending on terraces, ditches, fences etc. The sprayer company says the hydraulics of the fixed displacement/flow Maxuum 125 many not last long if the booms are used a lot with a restrictor to decrease the flow rate. The PRO model was about 8K more. It also adds autoshift road and field modes, 4 valves/cylinder engine, deluxe cab, electronic draft control, speed match, rpm management, a hp boost in pto and road gears and a few other goodies.