To me OMCV and DMCV defaulting to 3 is a balance issue not really a carry over from older editions, and it is really focused on DMCV throwing off the balance. Sure it would cost a bit more for a mentalist to get a higher OMCV but the power they would get for that since the average DMCV being 1 makes them way more powerful since it would be hard for them to miss.
Thinking on it a bit more and what traits would lead into MCVs I would say a a normal person that is a bit more scattered brain might have a lower OMCV (Harder to focus on a single task or attack), where someone that is normally focus would have a higher OMCV. DMCV wise would be more based on how quickly they can move from one thought to the next, sort of like mental agility.
KX_Mushashi got a reaction from Christopher R Taylor in Buying Down OMCV to Zero
