As Briney has already described, the restrictions in force are fairly droconian. I have just spent all day trying to come up with a workable solution to 2 airfields with overlapping instrument and visual approach profiles. The pairs incident described is not the only occurance, I belive the one that tiped the scale was a Nimrod inbound to Kinloss RW26 with VFR departures underneath out of Lossie. The RPAR ditched the Nimrod track in favor of the Tonker and left the talkdown controller issuing instructions to an ac going 300kts in the wrong direction. The fact the kit was trialed in the Falklands may have something to do with all the problems not being ironed out well in advance of acceptance. These things are sent to try us.