Thanks for the input it does help! It means that Ardiles may actually have head a lock on to the SHAR wingman. Yes the Shafrir has had 106 kills and I'd be interested to hear of similar engagements (head on that is). In fact I wouldn't be surprised if the Shafrir 2 had some (limited) h2h capability as indeed may have been the case with the R550 Magic (I, Magic 2 that later equipped the Mirage 2000 was a marvelous missile at the least the equal if not more advanced than the AIM-9M allowing the M2000's exceptional instantaneous TR to be put to deadly effect in WVR scenarios IIRC it could be launched from a 9g turn and pull 50g).
Technology and era wise it would not have been unheard of if the first two missiles had some form of all aspect capability. The Red Top had several years ago (even if it may have been true that it would probably require a high Mach target for skin friction to become observable).