Originally Posted by
Gertrude the Wombat
And what then are you supposed to do with the "aircraft on reciprocal course, two miles, no height information", as you can't see it?
What has worked for me so far is "assume he's below the clouds and that I'm the only one daft enough to fly in the cloud on purpose".
It is/was normal for Blackbushe based instructors working Farnboruogh West to ask for RIS/Traffic Service when doing upper airwork and climbing or descending through cloud, reverting to FIS/Basic when clear of cloud.