Thanks guys very helpful,sorrry to be slow replying been off on a trip.All seems quite complex compared to the day job and the ready made well oiled system with a good ops department in Hannover working for me.The suggestion on Alderney is more or less what I,ve doing but remaining below R41 when my track merges.I,m looking at running down the channel remaining clear at as good an altitude as I can get and negotiating with the military for a service on the Scillies run.I sometimes wonder if we make the best use of the lower levels we could , I,m rarely down there in the work jet and well remember halcyon days twenty five years ago running round deserted Uk skies at levels up to 190 in the wonderful Viscount.I wonder if those middle levels are still as deserted away from the major terminal areas??.Its still a very big sky!!!.