I've updated the manual and I'm updating the program to more
easily handle pure open distance

http://ozreport.com/Davis_Scoring_Manual.php

This free program is used for scoring all the USHPA sanctioned hang gliding
competitions. It is also used for a couple of competitions in Australia and
paragliding competitions in Slovenia. It works with SeeYou.

I'll keep you advised on updates. There is a link to the program in the manual and you can
download it. It now comes with a lot of documentation of the GAP formulas.