There's a group of us planning a short trip to LA in mid-March (about 20 of us ranging from 10 years to 50 years old). We've done Disney, so this time we want to check out Universal Studios. We've purchased a 2-day pass at Costco. Would be able to see and do everything if we were to go to Universal on a Saturday? I'm not sure how busy and long long the line-ups will be. Would we be better to head on a Thursday or Friday? Would one day work then? Or do we need to do two days? Help???