Yeah, I was tempted to just try them out but was a little hesitant on a retread with no prior experiences for my DD. Maybe somebody from here did try them out, because I went back to the ebay listing the next morning after posting this thread and they were sold. I did find a thread on a Land Rover forum and there were some very mixed feelings about them.
I ended up buying a set of used Duratracs off Craigslist for $120. They'll take me well into next year, but after I recoup my moving expenses I'll figure something out about tires. These may be back on the list to try.
2007 XK Limited