Where people here are advocating orbits on 'finals' are we talking short final (4nm), long final (8nm), or before even that?
The aircraft doing an orbit could be on a 20/10/5 mile final, and not even in the circuit. Just how does this stuff your orderly circuit up?.
If you cannot fly a safe orbit with your gear and flap out buddy, you shouldn't be in the cockpit.
Ok this isn't a problem -- as you say, not even in the circuit. And yes, if you can't fly an orbit in that setup then something is amiss!
But! to orbit on
short final
in the circuit is a bad idea -- if at that point the runway is not clear or the approach is not stable then
go around because that's what it's there for!