These sorts of survey-style questions have no "right" or "best" answer; every answer is equally valid. I'm not sure whether this metric one is editable to be in a non-survey format. Right now it asks:
"For those of you who are accustomed to the metric system, how do you deal with this annoying aspect? Do you annotate your books? Have you developed a conversion method that works reliably and doesn't disturb the game's flow?"