for a ninja spy monk, what are the pros of going pure monk vs throwing in 6 ranger, or 6 fighter, or maybe even going 8mnk/6rng/6ftr?
For pure or purish:
In terms of enhancement trees, it is the capstone and henshin MP, so there are reasons to be pure. There is not enough AP to go around.
In terms of feats & general monkness, consider the cutoffs: 12 monk for abundant step, 15 for quivering palm, other various level boosts for movement speed, unarmed bypass & damage die, forms feats at 12 & 18, pure monk DR, etc.
Splashing means access to different powerful trees like tempest or DWS, extra feats that help with having ranged & melee attack, haste boost (monk trees lack this), tier 5 kensei for being centered with non-monk weapons (this is a biggie), and a long list that is subtly evident in specific builds.
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