Two Aircraft same route different levels similar longitudinal track:
Radar "ac 1 Change to XXX frequency yyyy.y" followed by same for ac 2
New freq busy & waiting to get a word in Just about to key Mic when
"
ac 2 maintaining Fl etc etc
Grr
Given descent clearance to a level with no info about opposite traffic 1000below.(TCAS not initially indicating any traffic) I've now taken to putting in constraint point minus 5nm so as to ease the ROD to less than 1500ft/min by the clearance point to try & avoid TAs.