g^1$ at the LHC, for standard RS with the SM in the bulk ($\kappa r_{IR}=0$), three models with large brane kinetic terms ($\kappa r_{IR} = 5, 10, 20$) and the model with a larger custodial symmetry, in the cases when $N=0$ or $1$, of the additional KK custodial partner quarks are light enough that $g^1$ can decay into them.](tt.pdf)

![\[fig:bxsec\] Cross section for $pp \rightarrow b g^1$ at the LHC, for standard RS with the SM in the bulk ($\kappa r_{IR}=0$), a model with a large brane kinetic term ($\kappa r_{IR} = 5$) and the model with a larger custodial symmetry, in the cases when $0$ ($1$) of the additional KK custodial partner quarks are light enough that $g^1$ can decay into them.](btt.pdf)

As indicated above, models with the extra custodial symmetry to protect the $Z$-$b_L$-$b_L$ coupling from large corrections have considerably more freedom to locate $Q_3$ closer to the IR brane, and considerations of the $T$ parameter prefer to do so. This enhances the $g^1$ coupling to left-handed bottoms (up to about $3 g_S$) and results in large production from bottom quark fusion, as shown in Figure \[fig:xsec\]. It would be useful to be able to discern that the 