Figured I'd post this, since I haven't been able to find anyone who posted it.
Since patch 3.3, you haven't been able to reset raid lockouts when you server transfer (since they reduced the cooldown to 3 days). However, I found a way to get around that.
When you transfer, if you do a ghetto name change, it resets your lockouts.
1. Create a character with your character to be transferred's name on your target server
2. Transfer the character to your new realm
3. When you get there, rename your character to something different.
4. Enjoy running twice the raids in a week!
Now obviously, this wouldn't be used to run all raids every 3 days unless you were obscenely rich, but it gives you an added perk when doing a server transfer anyways. raid everything, then transfer, and raid it again
-Phate