Last year, SFA had ERT for all season pass holders 7 days per week during the peak season. Each morning one area of the park would open an hour early for season pass holders. This didn't always include a coaster. For example, on Saturdays the water park opened early. But, on Sunday it was SROS which explains why I usually went on Sunday. It was also nice since you were already in the park at the official opening time and could grab a couple rides on other coasters before the lines built too much.