There's some very interesting discussions going on in this forum at the moment (chimes/sterile cockpit rule, technical knowledge, etc) that are great. Hopefully this piece of work I'm doing will clarify just where we are with all this stuff.
Which brings me to my point - I'm just going to keep the link to this questionnaire (above) open for another week or two, after which I'll close it and start a final analysis of the results. Many many thanks to those that have completed it so far.
Cheers.