[UnLimiTeD]

Hapsum-Do, if I typed that correctly, is an awakened Martial Arts whose fluff value definitely exceeds it's crunch value.
It offers access to a Harmonious Defense Metamagic that's basically Anti-Magic, only without a skill.
Sadly, it's only accessible to Adepts, making part of it's options useless by means of Adepts just having plain better tools for the job, but the magical defense is solid. Possibly.
So, what I wonder is:
Are MyAds still Adepts for this purpose, or is it only pure Adepts?
And, if they are, how will 'Harmonious Defense' mingle with regular Anti-Magic?
Can they be stacked? Can only one be used at a time? Can the character only ever possess one of the two?

[Jack_Spade]

Yes and yes

"Prerequisites: 15 Karma cost, must be an adept or mystic adept"

You have two pools for anti-magic which is pretty useful - there is no rule that wouldn't allow having both

[UnLimiTeD]

That'd actually turn this into a powerful option. Though I guess I'd still need to buy the Astral Perception Power for regular spell defence, and I'd require three initiations to get it on a pariah. Or two, depends on if they ever introduce Opposition.
I guess it'd also affect Arcane Bodyguard?
Which raises another question: Are they both "spell defense dice"?