Check it out: 2 white Control Slaver decks in the top 8.
http://www.themanadrain.com/forums/index.php?topic=23614.0Also take note how they are not using Abeyance or Isocron Scepter. If you look really hard you might even see Time Walk in the main deck.
I guess this list might have less "innovation" than yours, but winning an Ancestral Recall >>> Innovation.
I haven't done any testing with this deck or anything, but from the sounds of things, Eandori, you need to stop picking an opinion first and then defending it with all of your might. Take an objective look at everything and calmly accept that you need to fix a few things that your deck is lacking. I know it took a really long time and lots of interweb-yelling to get you to play with Brainstorm -- try not to make other "obvious" changes so painful. I say this on behalf of your blood pressure.
