Salute!
Don't think many of the RAF folks who contribute so much here, but maybe some RCAF F-5E drivers could help.
Seems to me that the F-5E gear configuration and cee gee was such that they needed to crank up the nose for takeoff. Apparently the elevatror didn't have enough control authority to change pitch at a reasonable speed racing down the runway. I lurched one day behind our "agressor" folks and they had some gizmo that actually extended the nose gear to raise the nose.
I only flew the F-18 sim once at St Louis, but apparently the rudders were canted in for takeoff to help get a nose up pitch moment.
Gums wonders....