cheers for replies.....
fullrich: The chances of me not hitting 3500ft and therefore CAS is damn unlikely! It's all getting a bit tight on accuarcy now
fmgc: I agree, but I'm looking for a definative solution without changing track.....if there is one! Starting to think that altering track is the best way and taking the penalty of it not being the most commercially viable track.
World of Tweed: yeah, that was my first thought (climb to 3400ft and ask for help). Being absolutely precise, still not 1000ft above. I know you said 3500 but that's bloody Class A again!!
Thanks again