DIBELS MCLASS help

I will be administering the dibels mclass for k-2 in the fall. The training was so detailed and thorough with lots of chances to practice. I came home and just practiced with my at grade level 2nd grader.

Man assessing those nonsense words is HARD!!!! He reads fast but if he did make an error is was hard to catch and note that error and listen to the next 5 words he reads fast.

The word reading and oral fluency were fine.

Any tips that have helped you administer this?