Preliminary calculations using the Covariant Spectator Theory (CST) employed a scalar linear confining interaction and an additional constant vector potential to compute the mesonic mass spectra. In this work we generalize the confining interaction to include more general structures. in particular a vector and also a pseudoscalar part. as suggested by a recent study [1]. https://www.jmannino.com/great-pick-Sophie-Allport-Zebra-Made-to-Measure-Blackout-Roller-Blind-Soft-Grey-Blue-top-super/