looking to piece together a cab. i already have the sport roof... and i was looking at getting the sx cab system OR just buying the doors front and rear glass and keeping my roof. I'm ok with taking a hit on the roof i already have in order to get the premium roof if its worth it. the main question is what is the main difference between the pro fit windshield and the fixed glass windshield? i understand one is profit and the other you need tools, but will the fixed glass one seal up any better? any benefits? it looks like with the fixed glass you can add a wiper at some point. anyone done this? on a side note polaris sure knows what they want for their accessories, holy smokes. thanks for any replies.