OK- Here's a question:
If you are using an enhanced bird, why cut the salt content in half?
Afterall, you are just seeking an equilibrium. In fact, cutting the salt content in half may just drive the equilibrium in the other direction (i.e. salt and water in the cells flow outside).
This year we happen to have a bird that is enhanced with an 8% solution, so I'm not sure whether I should brine or not. Lots of conflicting info out there.
I agree with your equilibrium hypothesis, but if that is the case, it shouldn't matter if your bird is enhanced or not. All it would mean is that less salt/water would get into the bird since equilibrium would be acheived earler.
What do you think?