Binding Control Arms on New Mowers

I've been looking at the ZT HD mowers and noticed that 4 out of 5 mowers have their right control arm binding at the point where it flexes and meets the bracket. As I looked closely, I found that there just isn't enough of clearance for the control arm to not slide against the black bracket. I looked at a couple other models and some of those models have the identical binding problem. It's really not a big deal as it doesn't bind badly enough to get stuck but what I saw happening on the floor models is that the paint is being scraped away from the control arm and bracket, which eventually will cause the paint to completely scrape away and make way for rust. Is this a common problem with that style control arm? I thought that the only remedy would be to bend the bracket outwards by approx. 1/16".