Peter Immelmann
Mega Poster
I'm not entirely sure what the back-and-forth swinging is supposed to be good for as it'll only be doing something when longitudinal forces are at play, that is, on lift and in the break. Ok, maybe it's a nice add-on doing a bit of back-and-forth swinging each time you hit a break. BTW, I strongly suspect that the two rows are synced with some kind of connection rod regarding the back-and-forth swinging. Did you hear about any details concerning this?