Dear Fellow Aviator
I have not flown in the UK and was not old enough to fly in 1961. (USA guy here...instrument rated and cfii back in 70's...presently cfiimeiatpmel)
BUT
My understanding of the procedure turn (45) is this:
no teardrop unless a racetrack pattern/holding pattern is depicted.
the only thing used in place of a 45degree procedure turn that might be acceptable is the 90/270 course reversal...in some places known as an 80/260 course reversal...ALL on the depicted side.
good luck!