Which one of these is more accurate, what your Airline is advising about this?
Don't know about the accuracy of the statements as that is what is under discussion in JAA land. My airline uses damp = dry.
Remember that using wet figures on a dry-ish runway does not necessarily lead to a statistically safer operation as margins may be reduced.
The LGW ATIS was broadcasting "Moist, moist, moist" when I landed there some years ago...