Alrighty. So I haven't had the chance to fix the northern islands yet, but here is the tectonics map (which should remain largely/wholly unchanged by the island situation):

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Name:	Thranjok - tectonics.jpg 
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Of course now that I'm posting it I see more issues than before. For instance a few arrows don't quite work and I'm thinking that the convergent bits on the Western side of the map might be a bit much...

Would love to know what others think.