  We compare lattice scales determined from the vector meson mass and the
Wilson flow scale w_0 in QCD with two-flavours of rooted naive staggered
fermions over a wide range of lattice spacing and quark mass. We find that the
distributions of meson correlation functions are non-Gaussian. We modify the
statistical analysis to take care of the non-Gaussianity. Current day
improvements in the statistical quality of data on hadron correlations further
allow us to simplify certain aspects of the analysis of masses. We examine
these changes through the analysis of pions and apply them to the vector meson.
We compare the flow scale determined using the rho mass with that using
Lambda_{MSbar}.
