Okay, expanding. Aside from the better camber curve you get from tipping in your strut tops 2 degrees, you get a better castor curve too. Leave the ridonkulous extreme non-real-world examples out and Dean.
I need to sit down and expand my thinking on it whne I haev more time tonight but it seems at first glance to me that by reducing the angle between strut and axle, you slow down the camber loss as the strut is shortened under compression.