I feel you. It really makes me miss
Disneyland’s system, and really appreciate the boarding group system for rise.
I think it would benefit everyone if Disney went to the boarding group system for the most in demand rides at each park. They wouldn’t all have to be boarding group only, but essentially replace prebooked FP for tier one rides with day of only and have them disconnected to the prebooked FP system. Prebook any 3 rides (no tiers) and then hold one active BG for the previous tier 1 rides.
At DHS: RotR, MF, Slinky
Epcot: Frozen, Guardians, Rat
MK: Tron, 7DMT, Peter Pan
AK: FoP, Navi, Safari
Most of these will have a more reliable throughput and they can ere on the side of caution and just open the line up to standby if they get through all groups early.