knowingly go below MDA because there is "enough saftey margin"?
I realise this will cause an uproar, but realistically 50 feet is going to make stuff-all difference in terms of flight safety in a go-around from an MDA on a non-precision approach. The lowest MDA I know of is probably around 350 feet and if for decades the normal published MDA has been used from where a go-around is commenced (whether dive and drive or a constant angle descent) I doubt if there are hundreds of aircraft spread over the countryside simply because they went below a MDA by 50 feet on an instrument go-around. Isn't it all really a storm in a tea cup? Having said that I realise there is a question of legality.