Just caught up on this thread. For me, one of the joys of driving a large Auto is that it rolls very freely and will travel a long way before it loses speed. Therefore if I am not on the gas I tend to move my right foot over the brake, particularly if approaching a hazard such as a side turning that may have cars entering/exiting. Thus, should I need to brake, I am already there ready and don't lose a few fractions of a second in moving my foot over. Hence, I haven't considered the need to left-foot brake.