I was talking to my dealer yesterday, and he showed me a new option available through Scag for their mowers, caster wheels with coil springs as spokes to absorb shock with the no-flat tires. Coincidentally, I got an email from someone last night with pictures of prototype auto tires made by Michelin that have no air in them. In place of sidewalls, there are flexible spacers every couple of inches which give with pressure, just like regular tires. Now, I can see where this technology might eventually see its way into the mower market. A true no-flat tire that rides as good, or better, than an inflatable. Along the same lines, he told me that Gravely was going to introduce a new mower for 2012, with a model number designation of either 300 or 400, which is going to be substantially heavier built than the current 200 series of mowers. I believe he said it will be a Pro-Turn, but it is possible he said Pro-Ride. And, get this, he said it is supposed to offer a true air-ride seat! I've been wondering for years why someone hasn't done this. Maybe now it is actually going to happen. About the time I get too old to mow, they will get all this stuff figured out.