It amazes me that C'dale replaced a bike for brake shudder. In fact, I'm not sure I actually believe that.
I sure do believe he's got a problem with brake shudder, it's very common with canti's and aluminum forks.
Not a lot I know of to do for it either, severe toe in and learn to modulate the front brake. Sometimes it gets better as the pads wear in, and/or get dirt packed into them. A steel or CF fork, usually cures it, I'm told.
Ron