After an extremely slow start to our growing season due to the cold weather, I had the opportunity to put my new Gravely 460 through its paces the past couple of days. Yesterday I only mowed 3 lawns, all relatively small, so really didn't get to try out the air suspension seat all that much. Today, I mowed one of my larger properties, about 2 acres. It is also arguably the roughest lawn I mow. It is a farmhouse, with the terrain itself bumpy, with several rock outcroppings peaking through the topsoil, plus the owner's son doesn't think twice about running a tractor or his pickup across the lawn, so there are also several rutted areas. One thing I did when I bought the mower was switch out the OE flat-free tires for pneumatic ones. I was after the best possible ride. The air seat is fantastic! It took a few tries for me to get it adjusted correctly, but once I did, I literally could not believe the difference between it and the mechanical suspension seats I have been accustomed to. I actually fought it for a while, and found myself tensing up when I knew I was going to hit a rough spot, thinking it was going to hurt, until I realized the suspension was absorbing virtually all the shock. I found I could mow at a substantially faster pace than with my other mowers over the washboard like turf, even to the point of making it almost uncomfortable for my feet because of them bouncing off the floor of the cockpit. Although it does take a bit of getting used to, I also liked the quicker response of the transaxle systems as compared to the pump and wheel motor drive system on the Pro-Master series. I do think Gravely made a mistake in getting away from the pivoting front axle. Not only does it minimize the "hiking" of one front wheel coming out of ditches, etc, the pivoting front end also does a lot to absorb shock, meaning if it were teamed with the air ride seat, it would help eliminate a goodly portion of the shock caused from rough terrain, making the ride even better, and minimizing the bouncing of the rest of the mower. If you are wanting a comfortable ride, you definitely need to give the 400 series of mowers a look. By the way, I also had an electric deck lift installed. It works fine, but the two way switch is a bit hard to activate easily when you are on the fly. I'm sure I'll eventually get used to it, but I wish they had come up with a system of putting the activator on the operating handles instead.