I have this one as well....or HAD this one, as I won't be able to use it with my new cage...I know for sure I can't use the top half because of the intrusion bars, but it works great on the stock windshield.
Taking it off is actually easy. I havent really gone that far though much b/c tilting it forward gives nice airflow and you still have protection for your upper body. I would like to mention I had an upper mount break on me at one point and they sent another one to me for free. I personally think it was just a bad molded part that got through. Great customer service sent me a replacement that week. Even with the broken mount it stayed on and I rode with it like that for a short time. Other than that I no scratches at all and I have driven through quite a bit of brush up here in Pa. I highly recommend it!