When an employee has a change in status, such as adding or subtracting dependents, or submits a new W-4 withholding form, you'll record that information and verify that the payroll system is updated. Filing is a large part of the job.
For instance, if a policy expired on January 1, 2007, the data included on the Experience modification would comprise the period from January 1, 2003 to January 1, 2006. Experience modifiers are normally recalculated for an employer annually. Each year, a newer year's data is added to the three-year window of experience used in the calculation, and the oldest year from the prior calculation is dropped off. The other two years worth of data in the rating window are also updated on an annual basis.
Whatever you decide, donât mix reticle & turrets of different units. Many entry-level scopes may have a mildot reticle (MIL based), but the turret adjustments are in 1/4 MOA clicks. That doesnât make a lot of sense, and can limit how quickly you can make 2nd round corrections.