This staff confirmation showed up on LSDBi today:
Date Issued: Oct 31, 2007
The membership services staff confirmed that all competition and any associated athletically related activities in multiple sports on a single day of competition shall count as three hours toward the daily and weekly hour limitations of a multisport participant. [Reference(s): NCAA Bylaws 17.1.6.3.2 (competition day) and 17.1.6.3.8 (multisport participant)]