<p>It's 3 days past the RD + Arts due date; is there any way I can still fix a mistake? I just realized I forgot to check one of the years I participated in one of my more important EC's.</p>
<p>I can with almost certainty suggest that it doesn’t make a difference. It certainly isn’t worth contacting them about. If you get the opportunity to send in various other updates (grades, awards, etc), add it to that, but certainly don’t contact them for just this one (very minor) adjustment.</p>
<p>Are you sure? I wrote two essays about the activity.</p>
<p>That makes me even more positive about my statement. If you discussed the activity, then you’ve told them what they need/want to know/have indicated the significance of the activity to you. </p>
<p>Do what you want to do, but the risk would by far outweigh the benefit of asking them to check an additional year of activity box.</p>
<p>I wouldn’t worry about it. One checkbox does not an application make.</p>