Rick Walker, of Diesel Crew fame, told me to try SSB squats with the yoke pointing backwards when the bar is racked.
I hit 355x3, then this occurred at 405.
http://www.youtube.com/watch?v=1o2bgi01YpU
What happens when you squat with the bar in that position is that it places the weight even further out in front of you, and the bar is actively trying to push you into a face plant.
I can immediately see the value of using the bar like this.