How Effective?
RR asks how effective - what standard is the DC skid lid?
Dunno - all I do know is that in my above post that in scenario #2 the rear seater wore one and had very limited facial/cranial injuries. He still broke his spine, punctured a lung and ruptured his spleen but is now back to work doing what ATPLs do best; cue airline jokes.
The head to panel space in the back is probably at most 2" further away.
I don't get too hung up on BSI/ANSII whatever - if I think it will work for me I'll give it a punt, if it doesn't I shan't be queuing up to sue.
The nanny state mentality frightens me more than a cross-over spin.
Stik