Comparison of SQUEzE performance (f₁ score) when using the default set of line bands and the two new sets of line bands (using wider bands and using both wider bands and some extra bands), specified in Table C.2. Both cases are computed with a minimum peak significance of 2. The left (right) panel shows the performance for the low (high) redshift quasars. The fiducial model, using the wide+extra line bands is the best performing.