Another old guy here. If you are in Montana, I would really encourage you to enclose the whole thing. I'm in WV and we get plenty of snow and bad weather Nov-April. I would not ever have another SXS is it wasn't enclosed. I remember flying off the mountain trying to beat summer rainstorms on my ATV. Now, I just piddle my way off the mountain dry and smiling. Opening the windshield and side windows in warm weather is not much of a price to pay for all the comfort you have in bad weather.