It also looks strangely similar to the bar he (Big Jim) has coming out in a couple weeks. Actually almost totally identical.
The idea is you use it to get 180 apart as a
starting point then you can pull it halfway out and have good leverage to move a single hood around when it's half screwed down to get the proper alignment to account for the brush cocking.
Kraig mentions this:
Keep in mind you have to align each hood individually to get the maximum performance out of a motor.
Implying that he indeed knows that 180 apart is not the ideal situation.