In the supplied two-dimensional, uniform-resistivity, compressible-MHD island-coalescence system, every spatially resolved, pre-plasmoid case over the nominal inverse-resistivity interval S_eta = 1/eta in [250, 4000] belongs to one unbroken Sweet-Parker-like branch: the normalized reconnection rate follows R proportional to S_eta^p with -0.60 <= p <= -0.40, and the inferred exponent persists under at least one spatial-resolution refinement.
