Firstly let me apologise about the tone of my post and the offence I've caused, please accept my humble apologies.
Err I think what I was trying (Badly) to say was that we all operate ac that have safety flaws in one way or another, and that sometimes there is a trade off in where money (if any available at all) is spent. Sometimes go for the safety enhancement, Sometimes the operational gizmos. We'll never get everything.
Chappie: I stand corrected on the nature of the foam and can see your valid point.
All: Soz. pse look at the time of post
Back in my box and winding neck in.