Henry
The F-111C ejection near NZ was via a Crew Module - rocket propelled. It went into the sea supported by floatation bags but took aboard some water which could be pumped out by the bilge pump. Bilge pump is operated by moving the stick fore and aft.
Then there was that spectacular ejection from a terminal F16 at Mountain Home in the USA recently. One of the USAF's Blue Angel aerobatic team.
Fi6 would have been pulling 9g or at 27 degrees alpha, whichever comes first, when the seat rocket fired.
If the rocket gives the seat about a 12g acceleration and the start point was 9g then what does the pilot feel as the seat departs.? Careful it's not what you may think at first!!