After fitting the Vest, I tried it out and I am NOT disappointed. I was a bit apprehensive at switching out the springs out of fear that I might screw things up, BUT, I realized No Balls, No Glory. Installing the Red Springs turned out to be easier than I initially thought. This thing is Badass! There were some black plastic parts that came with it and I have not figured out what they are for. Prior to the Vista II, I was testing out my Redking and that is when I realized that my wrists were weak. And so I got the Arm Brace, it helped, but I could feel the burn in my forearms. Once I got the Vista II working, OH MAN! What a relief! Way easier to maneuver. Now waiting on my Crane 2S, so I can turn it into my own DIY ARRI Trinity AKA Minity.