It's not very often that a second review slips through. When a review is submitted a little number 2 is written to denote a second review. Usually we delete right away. Not very often the odd 2nd review slps by us for one reason or other. On a regular basis we go through the a-z to search for 2nd reviews. You'll only get one or two every so often. Theres plenty eagle eyed members to point them out to us too