Dominator,
Of course the FA2 couldn't go high and fast, but neither could the F3 really. Fast (very fast) I will grant you. But when the AIM-120 was asked the simple question 'High or fast? And it's British jets we're talking about so neither of them can do both!' It would always/usually/mainly answer 'Err - high please.'
I got to fire one and even chased an F3 firing one as well. (I kept up...but can't remember how!)
The Sea Jet was a great little platform with significant short comings. It had its day and a fine day it was. But even the most ardent fan would have to admit it would have been looking a little dated by now!