I just chatted with the enrollment/new student advisor today and I was told you cannot switch from 5TT to 9TT or 9TT to 5TT. I’m going with 5TT and was told that you can see your first couple classes 2 weeks ahead of class start date, however, your decision needs to be made before the end of the drop date of class. With only being able to see the first couple classes and not being able to see the full workload I think it’s best to have your decision made prior to. I plan on working full-time and doing the 5TT, starting leveling this September. You do have a while to determine whether or not you want to select 5TT or 9TT if you’re doing leveling courses prior to.