The rear view mirror on the canopy of the F4 was quite small. I saw it full of F4 on one occasion chasing down a 4 ship of Buccs in LFA 7. Too close for comfort but too quick for any action. Still here thank goodness.
The best effort on some exercise planners part was to put 10 Harriers through 4 F4s on Cap, 2 ECM Canberras 1000 feet above and hit the CAP with 4 German F4s as Counter Air. We went home ashen faced and that was in the heady days of Cold War Germany.