Thanks for that Checks. I did it differently (descent to FL250
keeping an eye on pressurisation and had 2 bottles from the
back brought up to cater for any cockpit smoke), and got no
abuse from the office.
The pressurisation system was working fine, which gave me
no real cause to descend to 10,000ft but of course would've
done so had we lost it. It could be argued a sudden decomp
would have to fit into the equation, but with bugger-all and
nearest airport 100 mins away its debatable I suppose.