  In this study, the properties of the $J^{PC}=1^{++}$ hidden charm poles are
analyzed under the variation of the bare 2P charmonium mass within the
effective field theory proposed in Ref. \cite{Cincioglu:2016fkm}. The main
focus of the current work is on the pole trajectory of the $\chi_{c1}(2P)$
charmonium dressed by the $D \bar{D}^*$ meson loops. It is shown that having a
bare charmonium pole above or below the two-meson threshold has radically
different phenomenologies, also depending on how close the pole is to the
threshold.
