OK - chaps, the above is very valuable info, and any such information is always appreciated by me.
One thing that I notice is that everything seems to address a pure "wet" setup - again, appreciated - but its the "change" part of changeable that interests me the most.
If the weather is changeable does the panel:-
a) have a dry setup to start with, and change to a wet setup with a long pitstop if it starts raining (obviously reverse the 2 if the race starts wet and dries up or whatever)
b) run a compromise setup that might be a touch slower in the dry, and a touch trickier in the wet, but is do-able with merely a tyre change
c) run effectively a "wet" setup, sticking slicks on when it's dry and taking the slowness on the chin, but ready for whatever wetness occurs with just a tyre change.
Any thoughts?