Kahuna,
I have had both and prefer the half windshield. It has a lip on the top that diverts the wind away from driver and passenger. It works at least as well as the full windshield in most cases and is a little less expensive. I like the way it folds up also if you want a "little wind in the hair" feeling or need to get into the front storage area or service the radiator. My neighbor, our renowned congressman, former college football star and pro football---not star---has a full windshield on his XUV. (I like that he likes John Deere products). I don't think he likes it in warmer temps as he has had it off quite a lot this past summer and fall. (As I think Skip also does). He keeps it on in winter and today he had it on (7" snow). His groundskeeper has mentioned that they may change to the half windshield for warmer temps and keep the full for only really bad weather days, but they can justify one of each--which most of us cannot. My half windshield was bought at just under $200.00 and I personally feel the additional $100.00, though not that much, is too much for the additional scant protection the full offers. My last full windshield would not fold, either, although they might have changed this. If you are going to be using your machine in rain or snow a lot, go with the full as the half will not keep rain or snow off you; if not, the half will do great for you for less $$$. One feature I like about both windshields in this cold we have had recently had is they hold heat in the cabin area. The diesel engine on my XUV seems to run rather warm and the cabin area is about 20 degrees warmer than the surroundings secondary to the circulating engine heat. I also noticed this with my gas XUV, just not as much. Neither is difficult to remove or install, but I have never felt the NEED to remove my half windshield due to its folding feature.
John M