Regarding the comments earlier in this thread pontificating on the quality of the current version of what used to be called the RGIT.
I did the refresher earlier this year at Petrofac and was amazed that for each ditching exercise they actually stopped the descent of the HUET and instructed everyone to "DEPLOY RE-BREATHER" then waited for a thumbs up from everyone onboard before proceeding to dunk us in the water. It would be damn handy if the pilots were able to be this considerate in a real emergency!!
Complete box ticking exercise.