Why can't we all sing form the same hym sheet. Whichever airport, take most limiting jet, performance wise, and follow the same EOP. Do the same for turbo props. As i see it at the moment with different operators stipulating different EOP's, ATC are slightly out of the loop. For sure we give a mayday, brief mention of problem then ask them to standby. Might then be a few minutes before we can get back to them to actually specify what we are doing routeing wise. I believe that you can also get these EOP's on charts, never actually seen those in the three airlines i have worked for but seems a great idea.