Red does not mean below precision approach minima for a helicopter. Red at Culdrose in particular means that some area of the airfield is red. You can always come up over loo bar or up the Helford depending on the wind direction.
So which 'precision approach' are you using to specific parts of the airfield that are not red? What you mean is you grovel in because you can't use the PAR as it is below minima. If that is your preferred technique then everyone can get in everywhere regardless of the weather, you just hover taxy until you see dispersal.
I would be interested to know if the present CivSAR crews are allowed to rtb that way.
Penzance won't be a poor weather option unless you plan to do your shopping at Tescos at the same time
Some people seem very sensitive to the future of Culdrose - the same people who were being smug when Chiv was faced with 12 hour ops or even closure???