Having read the report, I wonder if the manufacturers of the floats or CASA will do any tests to see what the time is for an average response to engine failure, to float deployment sufficent to be of use. 3 seconds seems very skinny to me. Given that its one thing in a sim when you are prepared, but entirely different when its all gone bang on a normal work day, with five sreaming people. My experience that screaming pax take a millisecond to get it all out, I bet there is a second worth of distraction just there. Surely in terms of height this accident was about as bad as it gets, related to response time Lucky the crew were all around.Great job by the pilot I say.