NOS electrolytics - experiences and reliability

[Aurora]

As a sort of extension to the fake capacitor threads, I wonder what experiences you guys have with NOS electrolytics.
AS en EE , I'd generally be very wary about using electrolytics that are, say 10 years or more.
OTOH - I too have quite a lot of them in my stash, I even have a handful of the old Sprague ATOM paper wrapped HV 'lytics....
what's your exeperiences with using, maybe after "reforming", this old stuff? How about reliablity?

[Roe]

just slow form the caps using larry's method (100k after rectifier and wait til the voltage drop over the 100k goes down to 5v or less)

[paulster]

The hot water method (also one of Larry's favourites) is worth doing on old caps too, to break down the electrolyte crystallisation, before reforming.