Steve Agnew,
I was just preparing to post a reply to your comment in the thread started by me. It was then I happened to see this one. So I thought I will reply this first. Quoting you, "Once again, without an agreement about the role of quantum phase in limiting precision, there is no sense in further discourse."
That is just an assertion; your discourse is "accept QM, there is no other way". But the game is open to all, until everything is explained. I think Classical Newtonian concepts with some modifications will be enough for explaining everything. So I argue that there is no (special) quantum noise, other than the classical noise extended to the quantum level; all quantum noises are as explainable as the classical noises. Even at the ordinary level, practically we do not know all the factors that are involved, even though theoretically it seems possible. At the quantum level, we cannot even say that there is a correct theory.
The concept of wave-particle duality is an attempt to understand the the factors involved at the quantum level. The wave-equations remain a beautiful mathematical tool. Surely QM has given some results. That does not mean it is 'the correct theory', and whatever is said is the ultimate truth regarding particles.
I propose that light is rotating particle-pairs in motion; and so it shows properties of particles and waves. Based on that, wave-particle duality is incorrect; the whole of QM then gets reduced to mathematical techniques that can extract some correct results.
Jose P Koshy