IIRC most of the stores/configs listed were flow by, or in support of the overseas programs.
One of the exciting flight trials of the 2” rockets was in a T5 when the open nose-doors reduced the directional stability during the rapid roll / pull out after launch. The fin departed the aircraft followed by the pilot shortly after.
I also have seen the film of the ‘twirler’, where a 2” projectile having launched, then returned to pass over the wing!
There were some early RAF development plans for fitting sidewinders on the under wing pylons, and also for a ‘Y’ nose pylon enabling a four missile fit on the nose. These did not progress beyond the Group project office as there was no money and the proposals might have conflicted with the then emergent Mk 6 gun fit.
Overwing tanks were used at Leuchars for some low level CAP trials (and low level training – for the hours), and for the air defense of the RN in UK waters. The latter task dropped the tank idea when we lost a chase and turning fight with some Buccaneers
However, for overseas deployment they did help, and I recall (that I did not notice) that the airspeed limit resulted in a relatively high Mach No during a run and break at a high altitude Middle East airfield; Boss debrief – nice run and break, but don’t do it again.