Michael
A novel route around the common objections that I hope works as I feel it's fundamentally fresh approach is essential for progress, whether entirely correct or not. Certainly I found sense and agreement with most, including;
" a current obstacle to unification is the lack of a true marriage of spacetime with matter... the "metric") is subject to quantization distinct from the matter and gauge fields." "...fields account for both the metric and the matter-energy content.."
also; "A "particle"... is simply a collection of detector hits..." and "...describe how individual detectors (including those in nature) react to specific Sources... the 'essential' properties of Particles, such as mass and charge, are not intrinsic but relational or contextual." and "there is no accelerating expansion," but only in that context that "there is no need of a cosmological constant..."
However, You say "...our choice of an SCC results statistically in dynamical, causal physics." which I agree absolutely should be the case, but a real mechanism seems not yet defined, and you identify "dynamism" as the incorrect assumption. I do not fully understand the distinction, including with your points 1-3. I find logical consistancy to be the key, both dynamic (PDL) and the precise hierarchical structure of Truth Propositional Logic applied to real and bounded inertial frames.
This may be due to the way I've been viewing my own derivation of something very similar, described in my essay, but under the 'kinetic state' heading, and analysing the effects of the temporal evolution of interaction, which you appear to dismiss, as able to produce SR from a known quantum mechanism, which you seem to agree with. Do you have any mechanism not specified?
We certainly agree both Relativity and QM must be re-interpreted to achieve unification, and I think are more consistent than some of your terms may indicate. I hope you may read my own essay and comment.
I wish you well and am sure you will score as highly as deserved.
Peter