As an example - nige says MRA4 AAR is not double skinned, shortfatone says it is in certain places.
From the info I've seen, I'm inclined to side with shortfatones tone/angle on the MRA4 AAR issue (i.e. there isn't really an issue, its been engineered properly despite its heritage), rather than that I pick up from nige (i.e. I detect he implies it is MR2 based & therefore no good, and believes somehow that inerting systems are the answer to all safety issues (which of course they aren't and bring their own problems)).