Has anyone out there installed a harness sytem? After I did a functional check out of my roll cage, the wife and had problems un-buckling the factory seatbelts. Found out that when all of your weight is hanging from the seatbelt, you can't unbuckle it. I am looking for either a 3 or 5 point harness system and can't decide which one to get. I also noted that most of them require you to install the bar between the roll cage directly behind the seats and I don't think you really need that if you could wrap them around the cage bar back there. ???