Wow. It's raining gravity series announcements here at NorCal MTB Racing.
Rumor has it that the Corral Hollow Downhill will expand into a full fledged DH series for 2007. The CHDH is the successor to the Groovy Gravity Games and held in Carnegie SVRA near Livermore, CA. You can review our coverage of the 2006 CHDH in the archives.
I'll post more information as it becomes available.