First: make sure every Instructor and TA works through every assignmentbeforeassigning it to students. There are places where the grader is very specific and working through it first allows you to head off problems. Knowing, for example, exactly which bullet. Or specifically which approach to setting a page number. Also, as good as the projects are, there are occasional ambiguities in the instructions. Finding these things first allows you head off a lot of problems. Besides, if push comes to shove, you can take 5 minutes (none of them take much longer) to whiz through the assignment in front of the class to SHOW that 100% is possible and not that hard to do.