Personally, I think a 2nd hand 24Pan is fine due to their ER but the T6Naglers with their lower degree of ER do tend to attract eyelash grease/gunk etc and warrant a clean from time to time - and herein is the problem of what the previous owner may have done to the EP - hence maybe worth buying new.
Ironically, the XW's with their eyeguard can virtually go from one year to the next without much more than a blast from the blower bulb - but they are roughly twice the size of the T6's
Uncle Al has been kind this year around Christmas.
