mag360- A couple things to comment on- 1- it looks like the blades ars medium lift blades. Any thoughts one way or the other, or plans to try a high lift to see what it does with discharge pressure/dispersion? 2- definitely a 400 frame, so maybe my thought about them using it for the bigger 72" deck is correct? Can you comment on this for us Gravely? 3- it sounds as if the "little" FX850 is plenty of engine for the 72" deck(which I have said I thought it would be to others here several times in the past). 4- this may not be important to everyone, but I would really want to have rear deck gauge wheels on that wide a deck, especially with that much trim side overhang I must say again, that is one nice looking machine!