Here is what we experienced 2/14 being one of the first through tapstyles when they opened. We had a similar mindset to yours, not using a touring plan per se but just generally trying to hit long-queue attractions:
Bus area health screen began 8:06
Taps opened 8:11
8:30 off 7D
Off SM 8:48
Off BTMRR 9:15
Off pirates 9:35
All of these 4 were near-walk-on when we got to them. After pirates, all lines had built up. Notably, Peter Pan had not opened early that day so we caught it later.
On 2/12 we went straight to Frontierland at opening. BTMRR started letting people through/running at 8:34.
Splash did not open prior to 9:00 either day.
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