I've been playing around with revalving the Monarch RT3 on my fish. I've only tested two different comp shim stacks so far, but there is more to come. See the details in the linked thread. Haven't decided if I'm going to continue over there or transition to this thread.
Rockshox Monarch RT3 Shim Stack
Let me know if you'd like more details. I don't really have the time to post a detailed "how to" thread, but this shock is really easy to work on.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Spearfish Monarch revalve