Perspective on rainbow-ladder truncation
  Prima facie the systematic implementation of corrections to the rainbow-ladder truncation of QCD's Dyson-Schwinger equations will uniformly reduce in magnitude those calculated mass-dimensioned results for pseudoscalar and vector meson properties that are not tightly constrained by symmetries. The aim and interpretation of studies employing rainbow-ladder truncation are reconsidered in this light. 
G. Eichmann, R. Alkofer, I.C. Cloet, A. Krassnigg, C.D. Roberts