My best advice though, would be to hit the dummy, and try it out.
Go for 10 mins on the dummy with Crit>Mastery>Haste, then another 10 mins with Crit>Haste>Mastery, and compare the 2.
Please let us know what you find out.
---------- Post added 2013-03-22 at 11:03 PM ----------
Conjor, I would personally like to thank you for the amount of time and math you have put in (resto shaman here). You have made an average, as you claim, but average is still good, it is a certain threshold you can expect for the rppm system to be able to proc.
Ofcourse, with the rppm system, which in my opinion is bleh, it is not guaranteed. But this will make it a whole lot easier to do some more theorycrafting without having to figure out the whole rppm system behind it.
As a theorycrafter, you have my deepest gratitude. That you shared it requires more then my gratitude, but I don't have more to give. So, thank you.
Much love to Indicate for creating. Eis' work