Anyone tried LA's new self adjusting back system? Not sure if it's a fragile gimmick or a really good idea.
[video=youtube;2GxGreIk8Zs]https://www.youtube.com/watch?v=2GxGreIk8Zs[/video]
[video=youtube;2GxGreIk8Zs]https://www.youtube.com/watch?v=2GxGreIk8Zs[/video]