Could I please have an official ruling. Our group is in a situation where we need to know exactly how special armour works. As an example please see p.167 of RMC Creatures & Treasures, Table 08-25, Type II Armour. Specifically let's use as an example roll 288 - "Mithril +30 [5](AT-17)".
My questions are?
1. What skill development does this require, Plate or Soft Leather?
2. What Armour Maneuver Mod applies (from Arms Law, Table 02-01, page 11), AT5 or AT17?
3. In general terms, if we take the literal wording from C&T, "A number in brackets indicates the armour type for encumbrance purposes", then what are the actual benefits gained by the wearer?
It all seems quite ambiguous. I'm really stuck on the wording 'for encumbrance purposes'. Does it mean literally that the only benefit gained is under the 'Encumbrance' section, p.41 of Arms Law, or is it more than that? And in all of this I'm thinking quite clearly of Bilbo wearing his mithril armour and how it was portrayed.
Relevant sections:
C&T: pp. 158 (Special), 167, 177 (Dragonskin Armour)
AL: pp. 11, 41