I have CS shortly, so I haven't taken it yet but no one really knows if there is such a thing as an auto fail
because no one has a score breakdown. I have heard people on here claiming to write down test they forgot to do occasionally and passing. I think it's more of a problem if you repeatedly put down major things you didn't do because then it looks more like you are intentionally lying to make your note look nicer. I think it's even less of a problem with CN because you have to test alot of nerves fast and I'm sure many people forget a step here or there without realizing. Also your memory as soon as you walk out of there is not going to be 100% and it will get less accurate as the days go by so you may be misremembering exactly what you did or didn't do.