This one hasn't - yet!
Perrin's aero training was actually done on RF5's because he wasn't old enough to fly solo - all dual with Robby Dorsey and one or two others, including me!
On his 17th birthday he arrived at Biggin and flew the RF4 for the first time and did a short display over the airfield - and a longer one somewhere over Sevenoaks. He was a veggie and teetotal so we had a good night for which he paid!
I think I know who you are but please send me a PM.