Thanks to everyone (there were many of you, some on the forums, some here, some via email) who helped improve the simulation profiles. No sim results can ever be considered "final," of course, but between profile improvements and bug fixes to the sim itself, I think we can say we're zeroing it in pretty nicely. And so I wanted to show you where the Mage simulation numbers stand at present.
Top build for each spec, with stat values
Twenty-seven combinations of spec, L75 talent, and L90 talent
I'll note that just about every time we find and fix a bug in the sim, the gaps between various combinations decrease. This is not merely an amazing, but a downright beautiful result from the developers' efforts.
The next thing, I think, is to focus on improving the performance of the combinations at the bottom of the second report. I'm sure there are smarter ways to play Arcane with Incanter's Ward, but I haven't had a chance to look at them closely yet. Please provide your feedback on methods of improving any of the profiles here!
I'd also like to thank all the SimulationCraft developers who have helped by either fixing things, or by answering my fool questions while I bumbled around trying to fix them myself. You guys are awesome.