ShyTorque.. not sure if I was SATCO I would allow such a novel approach, but it can not be easy with civil and military traffic.
I remember once in the Maritime Alps requesting right hand circuits over an issue of terrain clearance in the left hand circuit on a particular runway, so ATC put me into a right circuit and everyone else in a left hand pattern.
It was only a matter of time before two aircraft ended up flying towards each other on opposite base legs, and an exchange of words. But the matter was resolved in the end.