Deduction Begin Date for TER Event

Our process/policy is to have the deductions taken during the month covered. So if someone terms coverage at any point during the month of April, they will only have the deductions taken out on the two April paychecks. Below are the options available in the Event Rules ID table, and an example of when they would not work depending on where the term date falls in the month:
*1st Full PayPd after Event Dt - If they term in the first week-ish of the month it could end too soon. I.e. Term date 11/1, would be effective 11/8 so it would only be taken out on the first check.