Oh, if FEA is a must do for you, i would absolutely say FP that one. It is super hard to get, though not as impossible as it used to be, and there are never any to get later as a 4th FP. However, TT is not difficult to get day of, and its also much easier to ride at rope drop if that is something your family is interested in. We are not early risers, so when we ride TT or even Everest without a FP, we always go single rider. All our kids who are tall enough to ride are old enough to ride the ride without us if that cuts an hour off our wait time. You always get to wait in the line with your family members, its only the couple of minute ride where you may be separated, and that sacrifice is worth it to us. Its almost like having another FP because the single rider lines are always so short and they move so fast. Especially on TT because there always seems to be a need to fill one or two seats in a car. You may even be able to ride with your family member in the same car but different rows, we have done that before with DD, and the car had 2 couples in it already. Either of those riding strategies should give you TT with virtually no wait and also leave open that tier 1 FP for FEA.