Rob Galbraith's website has now updated its analysis of Canon's new release of firmware v1.1.0 for the EOS-1D Mark III. The firmware update was principally meant to improve the camera's AI Servo autofocus performance.
According to the analysis of firmware v1.1.0, "the EOS-1D Mark III's ability to acquire focus initially, hold focus on static subjects and track moving subjects remains poor. In bright sunlight on warmer days in particular, the camera delivers an unacceptably low percentage of in-focus frames."
The Travel Photographer's August 1 post.
Read Rob Galbraith's Updated Analysis here. The update is at the lower third of the page.