The 2006 -- 07 season is the eighth of the Sevens World Series .
This was only the fourth edition of the USA Sevens , which began in 2004 as a part of the 2003 - 04 series .
Although the 2006 -- 07 season is the eighth of the Sevens World Series , this was only the fourth edition of the USA Sevens , which began in 2004 as a part of the 2003 - 04 series .