I started laughing at this post and had to erase it!!!!
Too Funny!
Really guages do expire, I'm serious, just leave em out exposed to the elements and i guarantee you after 2 years you won't be able to use them.
well i guess you have not been introduced to the new, " icecream pins". you simple keep them under 32 F while in storage. when you are ready to shoot your gear you go through the standard procedures of injection. when finished injecting you scarf down the pin. it great for bulking cycles.