Luck is one idea that most bar review professionals don’t like to talk about.
It’s important to acknowledge that luck will play a role in your success or failure on the bar examination. Realistically, however, the truth is that a well prepared candidate can have plenty of bad luck and still pass with a comfortable margin.
A knowledgeable and skillful candidate can use sharp technique to compensate for soft areas of knowledge and still craft decent answers. Sometimes a poorly prepared candidate can have great luck and bluff their way past the bar examiners, but this is not a common occurrence.