According to the Writers for Exalted 2nd Edition.
- Dice Pool are capped by whatever Exalted’s Excellency says. Solar = Attribute + Ability, Lunar = Attribute (or Attribute + Essence during Fury), Dragon-Blooded = Ability + Specialty, etc.
- Max DV with Charm added is its max dice pool / 2 round up. E.g. for Solar’s Dodge DV is RoundUp[(Dex + Dodge + Essence + Dex + Dodge) / 2]. Which is the max DV regardless from any combination of Charms.
- 2nd Excellency is the only automatic success adder that is capped by dice pool.
- All other automatic success adders are only capped by the specific charm’s description. There is no cap on the number of successes combinations of charms (other than second success) can add.
- Successes added via other charms, unless specific noted in the Charms, do not count towards the dice cap for 2nd Excellency.
So in another words DV has max cap. Dice Pool have max cap. 2nd Excellency Successes have Max Cap. Other Charms adding Automatic Successes have no max cap.
It makes the Martial Arts Charm slightly more useful but not nearly as much.
It is also mentioned that the last 2 points are the reason why Automatic Successes adding Charms are so rare.
So lets use that system for now? Unless you guys have different opinion on the subject.