I just picked up an X-FILES pin today and I am very excited!!!
All of my other pins are older SS Williams games from the late 70's and early 80's (Gorgar, Firepower, Flash and etc.) As a general rule we always eliminate the battery packs and install NVRAM chips. These also have certain areas that are prone to cold solder joints and etc. that always need to be re-flowed.
I know nothing about these SEGA 90's pins but was a huge fan of the Original X-Files TV show back in the day.
*Any advice on some preventative maintenance items that I should do right away?*