Of course John Romain has PL983 finished with a standard Mk.IX lower cowl, while Peter Teichman's PL965 has the original Pr.XI type lower cowl for the larger oil tank (though John Romain has said they do also have the original style cowl for PL983 if they ever choose to install it). On PL965, back in the winter of 2018/2019, Peter Teichman had the original underwing camera blisters added back onto the aircraft which had been removed back in the 90's. After a few flights the CAA found out about it and forced Teichman to remove them until a proper minor modification application (rolling of the eyes appropriate here) would be submitted and approved, which by now I'm sure is all settled. It would really be wonderful if PL965 would finally have an original wrap-around windscreen reinstalled again, though I recall reading that Peter Teichman wants to keep the armored fighter windscreen in-case there were ever to be a bird strike hitting the windscreen.
Both aircraft were briefly flown together in a display at the Shuttleworth Heritage Day event at Old Warden in 2018.