yes sir I agree the tire analogy is true in a closed system , good discussion guess that would the same if you put a banana in the tail pipe
30 psi of boost is trying to push the alky back to the pump. So the first 30 psi the pump makes has no flow it has just broken even. After 30 psi you will get flow. This is in my example of a turbo car running 30 psi. The tire analogy is true.
No it ramps itself in. You can make the ramp add more or less alky if you need to. You can also adjust the turn on point. Once set up its very nice to use. Not hard at all.so have to adjust that through acceleration , not too user friendly
and id guess you 'd want a gauge so you can see what psi its spraying at in the cockpit