Thanks to the ATC folk who took the time to respond. I have a better appreciation of most of the whys.
The one answer I could not find was the minimum wx criteria when PRMs are used? Is it 1,000 ft, 1,500 ft or other ceiling or viz and what does the wx need to improve to in order for ATC to cease the PRM approaches, or is it also a matter of traffic/delays regardless of wx?
My question basically relates to us and other aircraft calling visual at 4,000 ft with PRMs still being persisted with even after we landed.
Thanks again.
