Just saw this on SDC website:
Exclusive Season Pass Holder Ride Time!
Silver Dollar City Season Pass Holders can have even more fun during our Exclusive Season Pass Holder Ride Time, June 4 - 10, 2011, from 8:30 - 9:30 AM! During these 7 days Season Pass Holders get all of Silver Dollar City's rides to themselves for a whole hour before the park even opens!
So, bring your Season Pass and get a head start on adventure!