Can anyone maybe supply some words of wisdom?
MC does not seem to leak. Have replaced cover and gasket. Seems seepage from seal area on booster. Have checked fluid level / pedal & seems OK. Bout 1/4 inch down is normal, right?
Minor dripage down face of booster from seal area.
Any ideas? Can age / or lack of use cause this seal to go bad?
I think booster is original. Less than 3K since MC was replaced 20 yrs ago.

Think rear resovoir may have been a tad high. Seemed like it had proper level. Seems to have squeezed out of rear down booster looking like it comes from the seam.

I would clean the area with some brake clean and keep an eye on it. I have heard of one horror story where the master leaked out the back and into the booster where it eventually ate the diaphram and then, Presto! no brakes!!! Just a story from a guy who heard a story so take it for what it's worth but keep an eye on it anyway, know what I mean?