I stand by what I said before...
"I don't know your strategy here, but I'd bet that things like Mana Vault, Grim Monolith, Sol Ring, Mana Crypt (if you can get that one), Thran Dynamo, City of Traitors, Ancient Tomb, Saprazzan Skerry, etc. would be good to have."
Well, I guess I now know your strategy though...
Still, it looks to me like you're using up 6 land slots on a single spell slot...
Enlightened Tutor is good, but that just looks too much like a weakness to me...
Then again, I guess having blue mana isn't too terribly important as long as you have at least one available. Still...