The data you posted is consistent with our design intention. The SW does not increase sound level until it reaches 4kts, so at 6kts the increase in speed is not significant for sound level and that is about the same for both DB's, but for different reasons (in stock soundvsspeed is not very big effect).
So the SW in stock db in that situation is about at NL 64, and in our DB it is about at NL 57, and given the log scale of the sounds, that would produce those detection ranges.
If you don't think that is right then I'm not sure if there is anything I can do to convince you, unforunately. :hmm:
But I'll keep trying!
