Best Before Date?

A silly and largely academic(1) point of contention, but:
Does a (race-quality) wax job have a "Best before" date?

For example: if a week or two later, the conditions are
just right for the (unused) waxed pair, would they still
work 100% - or would the wax job have deteriorated during
the time in storage?

(Someone I know vehemently argues this would be the case,
as there would be "oxidization and drying". Although I
quite regularly ski on week-old wax jobs and find them
more than adequate, I have no idea how they´d compare to
fresh ones.)


(1) The unchosen race pair usually gets cleaned up (or
used in training and cleaned up), and the probability of
just the right conditions turning up in the next race
are pretty low.


Anders (whose head is getting a bit feverish...)