Thanks all for your replies. Most were informative and a few were WTF are you even talking about. Sounds like the consensus says to take the 83 and go with it.
I have a student who is working on his commercial certificate. He studied hard for the knowledge test and before I made the endorsment I had him take two practice test. One from the FAA site and the other from Shepard Air. He made mid to upper 90's on the practice test's so endorsement was...