There is something ironic about the contradictory drive to make us all visible, (mode S etc) with there being either too few staff at RIS units, or crap kit that does not work! Flying on Sunday in that no-mans gap between Coventry and Rugby in IMC and Coventry could not give us any radar cover, just FIS - not a lot of use really.
With all the “big jets” going into Coventry through open FIR, this could get really messy. Still, I’m sure the TCAS works just fine.