Leaking Transmission Reverse/Backup Light Switch

I've been trying to chase down a slow leak in my 833 since I swapped it into my car earlier this summer. After lots of searching and many small gear oil puddles later, I've all but concluded that my reverse light switch in the back of the tranny is the leaking culprit. Has anyone ever dealt with one of these things leaking? I couldn't find a single thing about it on this forum...