Having started off working in Class A airspace, giving avoiding action was usually if you'd screwed up. Completely different in G. Do you know how annoying it is having to break off ILS traffic for the sake of one aircraft who passes through a 4 mile final west bound and THEN decides to call you???
The amount of times there will be hardly any aircraft within 15 miles of Doncaster, except the one that conflicts with with the IFR.
And what about the extra fuel burn, a big consideration these days!
Roll on class D!!!