Well done, Thud.
I guess I probably won't be too far behind you!
The 6 monthly medical does get harder every time (mine has been temporarily suspended four times over the years). My eyesight is still good, courtesy of the NHS. I'm part bionic these days!
But even harder is getting up at 4:30 a.m for those early take offs. I can honestly say I've done my share of "earlies and lates".