Posting partly to mention my Link 16 correction in #6784.
'820NAS had a lot of aircrew during CSG21 - sixty aircrew for seven cabs.'
WEBF, I'm not sure that is a lot to support 24/7 operations on a 6+ month deployment; my assumption is that they were using formed crews, min-3 for the baggers and min-4 for the pingers; so no more than 2 crews per cab plus 20%.
Although lacking 2087 the GP T23s did retain some ASW capability. Operating a role like pre-WW2 cruisers, I would think a ship acting alone should carry the most capable ASW aircraft it can, the problem being Merlin doesn't' mount AS(u)Ms so can only rely on the ship against a surface threats. Given the inability to carry a mixed flight and engagement with a surface threat more likely, Wildcat with Martlet/Sea Venom has the priority. I think Montrose had a Merlin (HM.1 ?) flight at some point.