So, let's debate this ruling.
RMC Character Law - Section 5.4 --> Movement at faster than a walk is a moving maneuver using Qu/Ag.
RMC Character Law - Section 10.4 --> Movement maneuvers usually use Ag, apply the armor penalty and a skill if applicable, then has an example doing exactly this. So it ignores its own previous ruling on Qu/Ag, and applies the armor penalty without mention to the armor skill.
RMC Character Law - Section 10.5 --> Movement under pressure seems to use no skill and ignore armor penalties, although the example lacks detail.
RMC Character Law - Option 23.2 --> There is an Athletic category for skills, and some professions have a level bonus to those, which includes potentially skills that would be used under pressure/for moving faster than a walk.
RMC Arms Law - Section 3.4 --> Part of the combat example has a character making a moving maneuver for running, modified by Agility.
RMC Arms Law - Section 4.0 --> The same information as RMC Character Law at Section 10.4, with the same example.
RMC Arms Law - Section 4.1 --> Movement under pressure seems to use no skill and ignore armor penalties, although the example lacks detail.
RMFRP Character Law - Section 15.0 --> If no skill applies to a moving maneuver, use Ag (3x because that's how thing are done in RMFRP). Armor skills is considered. The example used is the same as in RMC when no detail is provided, here also not provided, but the outcome is the same. There are Athletic - Gymnastics (Ag/Qu/Ag) and Endurance (Co/Ag/St) skills that cover a lot of movement situations, like Sprinting, Distance Running, Acrobatics, Tumbling and some professions have a bonus for them.
RMFRP Arms Law --> No mention of movement rules.
RMU mentions moving maneuvers might consider the armor penalties when relevant, and always applies a skill, since it includes the Running skill for ground movement, Swimming for water, Climbing for vertical, Flying for aerial. These skills are in a Movement category, which uses Ag/St. Some professions have a bonus for them.
My point is that although both RMC and RMFRP mention how to resolve a maneuver without using a skill, it seems more of a leftover from when Rolemaster was just an add-on for that-other-game and not consistent with the rest of the rules. If characters can have a sprinting, acrobatic, tumbling skill, and have a professional bonus for it, just rolling without adding anything seems lacking in potential success. Of course every gaming group will have its own view of these rules, and not all of these books will be considered.
For RMC in particular where there is more room for interpretation, my suggestion would be to add a "Movement" skill in the Armor or Athletic category, using Qu/Ag as suggested in Section 5.4, which would also include the armor skill total since it would be a moving maneuver. Since characters can't develop it, it should have a +25 special bonus to counter the lack of ranks.
For RMFRP I would suggest allowing character to roll their highest Athletic skill that might be relevant to the situation.
What do you all think?