There's a lot of information here, but to respond briefly: I don't have the T7 2-piece bonus. I've always had *remarkably* bad luck getting tier pieces--and I'm the raid leader of the group I run with! I only got my very first piece of T7 this past weekend, and I had to respec, regem, and re-enchant to stay hit capped.

I raid with a boomkin these days, and their passive 13% spell damage debuff is better than Curse of Elements. So I don't need to use that at all.

As for where I got the spec, 7 / 7 / 57 is a very small tweak. (I took points out of the demonology talent to improve your stamina, and put them in suppression. No DPS change, it just helped me play with my non-hit capped gear.) of something I found in a sticky thread at the Warlock's Den. Based on the comments, it sounds like I missed out on finding a more popular / better variation on destruction.

Thankfully, that's precisely why I'm doing this *before* 3.1 So that when I do it again after 3.1, I can do so from an altogether more informed standpoint.