Does Pay Type Category dictate whether multiple payments will be made?

We've always paid bonus, incentive, commissions on a separate payroll. We're looking at combining them and paying them with our regular semi-monthly payroll. In testing, one of them was causing multiple payments: one for the regular semi-monthly payroll and one payment for the bonus. We changed its Print Method from "C" to "Y", thinking that would do the trick. It didn't seem to. When we compared it to anther DBA which seemed to be functioning as we desired, we saw that "bad DBA" had a Pay Type Category of "B" when "good DBA" had a Pay Type Category of "O".