Thanks Wouter - releasing the downhaul will be added to my list of tasks when righting, as well as by F18 sailing friend's.

I didn't understand what you meant by the power righting method.

That got me thinking that I have seen power boats right cats by pulling on the righting line and motoring away (same positioning as above) - especially for cats that are turtled. Something makes me uncomfortable with that, other than in an emergency. I'd expect the sails to be damaged. Would you 'allow' a RIB to roll you back upright before you'd exhausted yourself?
Simon