Comparison of the model weight pulsation significance, P_m, and the pulsation significance derived when using the pulsar spectrum given by the spectral fit, P_fit, as a function of TS for the 131 pulsars with TS >  25 out of the 144 pulsar sample. The two methods give on average the same result but the model weight method is more sensitive by at least 20% for eight pulsars, whose results are reported in Table 2.