For clarity, by low vis I meant a situation between CAVOK and LVPs - where you would be operating normal gaps/packs but would loose sight of the aircraft with low cloud etc and therefor be unable to use reduced sep.
Our LVP criteria is cloud ceiling <200ft or vis <600m so perfectly possible to be operating with standard packs but loose the GA/departing aircraft very quickly
Last edited by whitelighter; 4th March 2013 at 20:21.