Obviously some leeway can be given for lower ranks. We need to keep in mind that the coordination isn't going to be there on day 1. However, even if the person is new, they should still look somewhat sharp. If their stances suck and they dont have power, IMO, that tells me that they need more work. Of course, people will be nervous and thats to be expected. So if someone does 10 techs. and 2 kata, and out of that, 4 techs. are a bit shakey, the other 6 are sharp, and the katas are good, I"m fine with passing them on. Of course, I also believe in making the person aware of their mistakes. By holding that back from them, IMO, thats doing more harm than good. This of course, doesnt have to always be done in front of the entire group.
Once the intermediate ranks are reached, I'd expect the beginner mistakes to be fixed. If you can't have power and stances by purple or blue, theres some issues.
The upper or advanced ranks...well, by that time, the students should not only look good and perform good, but be able to think outside the box. They should be able to adapt if the tech. they are doing starts to fail. What do they do? Do they just stand there, or just keep going? Can they be put into a new student teaching position, and be capable of executing the material as well as being able to answer questions about the material? Can they be put in front of a class, or put with a group of people and maintain control? In other words, can I take a 16yo BB candidate, assign him to work with 10 yellow belts, who are the same age or younger, and expect that he can watch what they're doing, help with polishing a technique up, and make sure that everyone stays focused?
As the student goes up in rank, a certain amount of toughness is also required. When performing a tech or being the attacker for a tech., how do they act? Are they timid and afraid or are they confident in what they're doing? Are they attacking in a realistic manner, meaning, when they grab, are they really grabbing or just placing their hands on the person?
These are just a few things that come to mind, to help get the ball rolling.
