OK . . . we finally have the correct distances figured out for the Herron Hammer course:

Pro/Cat 1 - 3 Laps - 26.3 miles
Cat 2       -  2 Laps - 17.7 miles
Cat 3 & Juniors       -  1 Lap - 9.1 miles

Here is a map of the course:

http://www.everytrail.com/view_trip.php?trip_id=2130617

Sorry for any confusion about the number of laps for each category!  See you soon!