The GURPS Meta-Tech Hype Thread

[Adelus]

So, I had a question regarding Meta-Tech for armor pieces which provide a benefit but only if all worn together.

I know most write-ups for things like battlesuits would probably be a single item to represent the armor, but I was thinking about the effects of removing pieces, or having a separate item that works in concert. Specifically in the scenario of having a battlesuit which can accept more than one type of helmet and, when both are worn, can provide a full pressure/environment seal.

Does this go on the rest of the armor, or the helmet, as some kind of conditional ability? Wearing just the helmet wouldn't cut it, nor just the suit, so I'm curious what the easiest solution to this is.