QUOTE (toturi @ Mar 12 2012, 04:23 PM)

I agree with what you have said. But I think the key here is not that "seperate" stops being "worn armor", but instead it is how you view "not seperate" and "other". Is a "not seperate" piece of armor an "other" piece of armor? To me, there is sufficient grounds that a "not seperate" piece of armor is not "other" armor.
I perfectly see where you are coming from here.
Basically, if you look at the following part without its context, one could certainly come to this conclusion.
"
Helmets and shields do not count as separate pieces of armor; instead, they modify the rating of worn armor by their rating."
So, basically, helmets and shields are not armor pieces on their own, but they "merge" together with whatever armor they are worn with, making it one armor piece with improved armor ratings in union. So, once you put them together, there is no "other armor" left, because there is only one, thus sidestepping the military-grade armor restrictions.
Where this utterly fails, however, is the context in which that part is mentioned, which makes it rather clear, that that part is not actually the full rule, but there is more to it (which is written on SR4A p. 161 under the topic of Armor and Encumbrance). In that paragraph we learn what the "seperate armor" part means. It means, that they are not like stacked armor, where only the highest value applies, but their armor ratings are added to whatever other armor they are worn with. Nowhere does it say, that they cease to count as armor. In fact, they are called "armor" in the very same sentence on multiple occasions, where the rules about modifying the armor rating of other armor are written.
The newer PPP text makes this even more clear by adding the "for purposes of encumbrance" part to it.
They do not "count as separate armor for purposes of encumbrance" - "for purposes of encumbrance" and for no other purpose.
Now, of course, if you ignore all those references to the encumbrance rules, you can follow that above logic and it works out just fine.
Bye
Thanee