A bit of a preface: I've been away from Rolemaster for a very long time (started on 2nd edition back in my teenage years, Finnish translation of the three Laws by Ace Pelit baybeeee) but have recently gotten the Rolemaster bug real bad. Managed to find a used RM2 boxed set (I believe it's the 1990 printing?) at a convention many years ago and got it as a curio, but ever since then I've had Rolemaster on da brain.
Anyway, on to my question, which is actually more of an observation and I just need input from people to know that this is either a non-issue or that it's an acknowledged issue: the attack tables and Quickness bonuses to DB. The attack tables in Arms Law seem to have been set up in such a way that you need a lower number to "hit" (i.e. deal any concussion hits) to a character in heavier armor, but as a tradeoff any attack that connects with an unarmored target will deal more damage and any critical hits will be more severe. (I'm specifying Arms Law tables because only a cursory glance at the various Bite, Claw, Trample and Stomp tables reveals that this rule does not apply to animal attacks, with unarmored targets being at more of a risk of getting hit in general and also taking more damage).
Now, my reading of the way the Arms Law tables are set up is that it's supposed to simulate armored targets being easier to hit due to decreased maneuverability from wearing armor, and the heavier the armor the easier you are to hit... but that's already factored into Quickness bonuses to DB, which can be canceled out by wearing heavy armor.
As I said, this might be a non-issue and may have even been intentional on the designers' part. I'm not really interested in a deep simulation, I just love those goofy lil tables cause they're fun, but my main worry is if there's an observable drawback from wearing heavier armor in actual play than emerges from the fact that heavy armor makes it easier for a character to take concussion hits via attacks AND that heavier armor cancels out Quickness bonuses to DB.
(The Claw Law tables are their own can of worms so I'm willing to leave them out of consideration for now.)