Nothing Changes
I first sat on an ejection seat in 1965 (Acklington) and last in 1984 (Bedford) throughout there was a fairly common standard of pre flight
You checked the handle was fully down and all pins were in correctly when climbing in because we knew you could get the seat pan pin in with the handle partially withdrawn
We checked the scissor shackle was "floppy" but I never understood why
So we knew what to do courtesy of routine flight checks but not always why we were doing it
As a further example; we did check for loose articles near the seat but I nerver realised that a dropped wander light could set off the drogue gun with "interesting" results. Had I noticed the wander light would not latch in the holder correctly I would probably have flown and reported it later
My rather laboured point is that knowing what should be done works even better if subject person knows why