Problem with the scores in some scorecards

Hi, i was searching for my friends in the german ranking an wonder about their positions. So i took my calculator and got some strange results: For example <a href="http://www.8a.nu/cgi-bin/scorecard/show.cgi?view=4072&amp;page=1" target="_blank">id 4072</a>: 2 7a= 1400 5 6c+= 3250 3 6c=1800 1 OS,1FL=198 1 "2as" = 2 total = 6650 But in his scorecard he gets 7012 annual points! same with <a href="http://www.8a.nu/cgi-bin/scorecard/show.cgi?view=4115&amp;page=1" target="_blank">id 4115</a>. am i wrong or 8a.nu? bye, hans