And even when you know where the traffic is on TCAS you STILL ask for further descent. eg "AAA123 approaching FL310 requesting lower"
"AAA123 maintain FL310 traffic just below you"
"Yes we've got it on TCAS"
Only happened a few times over the winter months but for Gods sake don't make a habit of it during the summer. Anyone who does will go right to the back of the queue.
