My '05 model 900R has the dealer-installed Curtis soft cab doors. They're OK, but not totally weather-tight. I still get some cold air and dust into the cab. They do an OK job of keeping most of the rain and wind off (I have a glass windshield, too), but are subject to the usual soft plastic crazing, scratching, etc. The optical quality is now pretty seriously deteriorated and the original Velcro straps that are supposed to retain the rolled-up plastic windows are about 50% gone. Having said all that, I'm glad to have them when needed! I can't remember how to post pics here, but if I can find my notes I'll repost with a picture.