and your point is?
As so many people have said before, NO DELAY is up to 20 mins holding. Period. Full stop.
If you can't manage that, then you are into the various options described at length. Your decision, your call.
As soon as you know you're going to land with less than the required minimum, then it's got to be a MAYDAY.
Inconvenience, paperwork, tea and no biccies, it don't matter.
Quite simple really.