So after logging on last night & playing around with the system I do have to say that I love the idea if it works as good as it seems.
For those of you that didn't know, after picking your 3 attractions it randomly gives you 4 scenarios that you have to choose from however afterwards you can go back in to each individual fast pass+ reservation & change them to practically whenever you like for return times.
For example the computer generated times might not have known we were park hopping so we wanted later or earlier return times & we were able to go back in & change them.
I think its interesting that they have included rides that in the past have never required a fast pass in the network.
Being part of the test group I'm excited to try it & hopefully give my feedback afterwards