Sorry, my memory isn't great. We were just there this weekend. Got my FP's at about 8:20 am, this was on a Magic Morning when I didn't have any magic. LOL. My return time was around 10:30 am. I know it was after 10am because I was disappointed that it ruined my plans to go to CA at 10am. So, yes, you need to go after rope drop and get your FP. I sent DD to ride Buzz while I waited in the FP line. We got finished about the same time.
Now, on my magic morning, I was in line for FP at 7:50 and I got one right away, with a good return time, but I can't recall what it was, closer to 9am.