Yes, we are aware of the option of routeing aircraft in/out via FAMBO. However, the problems are;
1) HQ Strike Command (I think) kindly repositioning AARA 6 so that it's western end is right over FAMBO FL100-240. this was done without any coordination/consultation, as far as I am aware, with the relevant agencies, certainly not with NV/NT. So when we do inform London Mil that we are routeing via FAMBO, we have had the response "you can't do that, it's an active fuelling area"
2)When KLM crews have been instructed to route via FAMBO to avoid VoY traffic, they've told us "sorry, FAMBO is not in our database". I suppose looking at a map is out of the question.
What I've started doing is giving the a/c a radar heading until it's above the VoY traffic, and then clearing it own nav UMBEL. But, as has been stated before, this VoY traffic is very unpredictable and separation can be lost very quickly.