One limit, not another dynamical completion

limit, not another dynamical completion{ X-B-ST supplies one first-vertex scalar map. X-C-ST supplies one second-vertex map and one iterated first-vertex coefficient. Their sum represents the second scalar response once.

X-D-ST takes the sharp-width limit of the resulting completed tests. It does not add another copy of that response, define another $R_2$, or install a product hierarchy. The metric coefficients remain classical.}