With 9/14 prop I don't see the pump loading till 56-5800rpm, ibwould think you need brutal mid to make the boat thunder when u grip it.
Once the boat is on plane bottom end is over, mid and top is in.
Not free rev for speed but 4500-7100 rpm is where you would make killer power to flat water back flip.
If you boat gets on plane slow you need bottom, if your boat is on plane and you want your arms to pull off when you grip it ask for mid.
But what you don't want is to loose all your low end for mid!
Dyno numbers show me the Baxter pipe is way down on bottom end from B chamber.
But stronger at 5800 up!
My personal thoughts ( just my exp)
you want a pipe that will match or better the B pipe from 2500-4300
but be much stronger from 4300-7500
that would make the boat leap out of water.