I can't say about the weekdays, but go on a Sunday at least 45 minutes before SFoG opens. You should be able to walk right onto Twisted Cyclone before the park is officially open. If the park is scheduled to open at 11:00, be there by 10:15, you may just be able to ride it a couple times before 11:00.The line and one train ops on weekdays. Can be a 45min+ wait. Love the ride, but it's just too short for that line.