Interesting Adrian..
I havent read Hodge's thread, but it has always been my understanding (from reading a number of engineering manuals) that Bump Toe out should be avoided.
Reduced steering angle of the laden wheel being the main reason, and also unpredictable bump handling response.
I have always used Neutral Bump steer, (on the Mi2 I use 2 x 2mm alloy spacers under the ballstud - With a long Tir Ballstud to ensure theres plenty of thread in the bellcrank to prevent it being stripped out)
pic:
http://img8.exs.cx/img8/6192/F_gearbox.jpg