One holds at missed approach finish alt + 1000 till the other gets in
Now why would I want to hold until the Performance Category C or D aircraft that just flew the approach and "missed" gets in, when my A or B category aircraft has lower minima?
I reckon you get your shot at the approach in order of arrival and if you "miss" you go to the top of the stack until it is your turn to have another go!
Dr 