given by Eq. (\[gauss\]). Forms such as Eq. (\[flg\]) are frequently used in phenomenological modelling (see for instance ref. [@BSpapers]) and are sometimes referred to as propagators in a ‘Feynman-like gauge’, though of course they are generally not of the form of Eq. (\[gprop\]). The sole advantage of the Feynman-like gauge is that it leads to considerably simplified calculations. In our case it is possible to locate poles more accurately because there is no pinch singularity requiring the contour of integration to pass through the point in question. Once the propagator has been solved on the real $k_4$ axis, the value of the propagator can be calculated at any point in the complex plane by integrating once along the real axis. Nevertheless, we have also repeated our pole calculations by shifting the contour and extrapolating as in the Landau gauge case as a check on the the consistency of the two methods and find that they agree to within the accuracy given in Table \[tab\] of the corresponding Landau gauge results. A Feynman-like gauge propagator was also used in ref. [@BL97] dealing with the ladder Bethe-Salpeter equation for the heavy quark–light antiquark system. There it was demonstrated that the model 