An additional stressor is that my wife has decided to come to the test. She's never seen one and knows that this is kind of a big deal to me. At least she'll have video proof so I'll be able to post highlights of a sort.
This is what I know. It will be an hour, I'll have three Sensei's running the test (just like my Brown with the same guys), I'll do three katas including my own, Sensei Grant will test my knowledge on technique execution (oh crap what?!) and then I'll have to fight the whole class. Sensei Slim is an unknown so those two guys (him and Grant) are really what makes me nervous. Sensei Grant has said in not so many words that our school maybe not as tough as he would have preferred. So his portion of the test is to grind me down until I see the black spots.
To come up to level of expectation I've been running with Dave. I've only done this twice and it's an excellent reproduction of the physical state of the test. For instance our run tonight was 31 minutes, which is a record for me, but the absolute soul-sucking lack of oxygen and inability to move my limbs is completely like Sensei Grant's portion.
I'm not saying I'm going to be any better of course, but I'll be familiar with the state and hopefully my mind will be able to handle it better.