It was indeed the screen 'clutter' I was referring too. Without 'mentioning the war'
I do not sometimes wish to feel as if I am in middle of a thousand bomber raid (in the cruise).
"Worst case then is another fellow descending at 3000fpm rate to F070 in your vicinity".
Not in my experience. Worst case is a high climb rate to, say, 100, with LEVEL traffic at 110. Happened a fair bit in the 'early' days at LGW with BOGNA SIDs and WILLO arrivals but we have ??all?? learnt now.
I understand the next generation TCAS will know what level you are planning to stop at, which COULD bring its own problems!