I am sure this is an "I am not realizing something very obvious" issue, but I want to make sure I haven't missed something.
I posted a Brawler build yesterday looking at dipping a MoMS Monk level.
Part 1) I know about this under Hybrid Classes "While a character can multiclass with these parent classes, this usually results in redundant abilities. Such abilities don’t stack unless specified." So to be clear, Even though the Monk's AC Bonus is untyped and the Brawler's is a dodge bonus, because they share the same ability name they do not stack, correct?
Part 2) The monk's robe. With Martial Training a Brawler 6/MoMS 1 would be treated as a 7th level monk and get the damage dice of a 12th level. The AC Bonus is where the question really comes up. Which AC Bonus ability is used? The first one you take a level in? Do you get to choose?
For quick reference: Brawler AC Bonus at 12 is a +2 and the Monk is at a +3.
1) Since the Brawler's AC Bonus is a dodge bonus and the Monk's AC Bonus is not, they are sufficiently different that they do stack. The same name means nothing, because many different abilities are given a simple descriptive name, such as "Weapon Proficiency", "Fast Movement," or "AC Bonus."
2) The monk's robe says, "is treated as a monk of five levels higher." So the robe advances the monk abilities. The robe does not affect the brawler's dodge bonus to AC, because it is too different from the monk's ability.
And it was an issue of me missing something very obvious. I read over Martial Training three times to make sure I was not misunderstanding its effect on Monk's Robe only to miss that it effects Feats and Items but does not make Brawler Abilities count as Monk Abilities.