212 man, I can't agree with your comments re STDS 24H. The DA +50 feet -0 feet s the tolerance for the test.
If I see an IR candidate make DA+ 50 feet and declare minima it's a pass but debrief point to ensure he has simply applied the safety catch for his IR and does not in fact believe adding 50 feet is a normal procedure.
It's alway been the same, a descent below minima IMC before declaring a GA is a fail. Declaring a GA within 50 feet of the minima and subsequently descending below the minima is acceptable provided the positive GA manoeuvre has been applied.
In my experience and in defence of CAA Flt Ops I have never been subjected to anything different in 25 years.