I follow a different strategy. I was park hopping starting at Epcot.
The straightforward thought would be to grab SDD or Remy's at 7:00am. But then I do not have a chance at the other one at all (since it is impossible to get early morning time for Remy's, that means the next opportunity would be at 10:30am). Instead I got Frozen at 7:00am, for that it is easy to get a 9:00am return time, and I used it as early as possible. Then I kept refreshing and got Remy's for 9:25 and 9:50 respectively in the two days. Then I used it as early as possible again. Then got SDD for late evening.
If you do not hop, I don't think it is worth it for Epcot and Animal Kingdom, and for Hollywood Studios, it is also arguable.