When I took it last September, they actually kicked someone out for not putting her pencil immediately down after the first section. I can't even describe the look of shock on that girl's face. Very sad.
I don't know for me I rather have that then they taking it on a little college desk where you don't have space for anything other than the test and a pencil.
I do 99% of RC with the highlighter, but just for extra assurance that I don't skim over it I'll quickly note "M.P." in pencil when, and only when, I've decided that I've found the main point. Otherwise, strictly highlighter.
I still can't get over how people show up without any pencils. And that the proctors ask people "Does anyone need a pencil?. I mean really? You didn't bring even 1?