as nys rep stated the rules are being revised hopefully to make them more understandable and easier to follow, BUT until that is finished and provided to everyone we must operate under present rules. taking the lower score may be what groups have decided among themselves but it is not a rule. as nys stated circle the wrong score and initial the changes but solving the problem of forgetting is not that easy. the suggestion of checking scores more often is probably the best one, both score keepers should have the cards in the same order and call that order each time that way you are not searching thru cards looking for the right one that is usually how a wrong card gets marked. it is not that hard to check cards while going to next target. once you leave the range an official can not really do much to solve this problem for you so keep your group together if the scorekeepers and the shooter can not come to a decision on this then it will have to be scored by the group no one else was there, no one else can help. no one other then the shooters can take score or be involved with this decision. as it is stated in the rules it is the shooters responsibility to make sure his or her score is correct.