I took my front hangers off and had originally planned to swap them left to right also, but I don't like the way they don't fit flush with the frame on the bottom side. I don't want to spend a lot on the B-52's, but we'll see what happens.
I also watched a video on leaf springs made by Eaton that suggested taking the springs completely apart and painting them was not a great idea. They said painting them helped contribute to the quicker breakdown of the spring. I've never done it so I don't know.