What is the deal? I know that last weekend was for season pass holders (we couldn't go cuz my son has a broken arm). Is it still in preview? Who can ride? anyone in the park? I got a very broad answer from an operator at WDW and didn't think it was right. If I go down in 3 weeks, will I be able to preview it? Also, is it a lap belt or a shoulder harness? COuld my son go on it with his cast? Thanks!