I think that's exacly it, and most people would be fine using the new Carlise Tru-power tread depending on how firm their soil is. My soil is pretty sandy with a high water table, so even less agressive bar tires would cause problems on my lawn.
I do have to say that, since I have the mounted turfs available for most work over my lawn, that it's nice to have the real agressive old-style tread for snow and dirt work. /forums/images/graemlins/cool.gif Here's a profile shot to show just how agressive the old Titan Tru-powers are. A small hydraulic jack and jackstands make the changeover pretty quick. I put the bars on the 2210 last night in a little over twenty minutes because we're expecting 8-10 inches of snow over the next two days.