What pain do you have with back mount vest? I don't feel any pain in my back mount vest. May I ask if you feel any back pain in your front mount vest?
May I ask why you said that "I was unaware that you bought a full size rig leigh. When did this happen?"?
I never bought any full size rig whatever. I manufacture SmoothArm.
Please Stop giving advice, you are WAY out of your element here.
This is a board of PRO's using PRO equipment. Just because you built "Something" doesn't qualify you as an expert. In-fact looking at your demo video and behind the scene's video proves that you didn't listen to the advice proffered on this board and don't really understand steadicam.
I agree with Matt. until you get a few years experience PLEASE stop talking like you know and understand. The dynamics of a 24lbs sled with a 44lbs camera is VERY different than that 12 lbs thing you have.
Honestly it's time for you to read more and post less, you might learn something