My 2 cents, for what it's worth.
I haven't been to WDW in a few years and leave in a couple days for our trip.
Soarin, Test Track, and Frozen are Tier 1 rides and you can only pick a FP+ for one of these. You need to rank them 1 -2 - 3.
Get a FP+ for your first ranked ride and do #2 as rope drop.
If your #1 has no FP+, then get a FP+ for your #2 and do #1 at rope drop.
I think if you want to hit Soarin and Frozen with minimal wait you need to Rope Drop one of them and FP+ the other. I don't think it matters which one is which. Either way you will have to wait a little bit, but doing a Rope Drop wait isn't that bad.