The current standard for Distributed Interactive Simulation (DIS) applications specifies that simulation entities use the Designator Protocol Data Unit (PDU) to communicate laser designation in support of laser-guided weapons engagement and delivery. The standard also specifies that during lasing activities this PDU be broadcast at a fixed 10 Hz rate. Documented implementations of the Laser (or Designator) PDU have raised questions regarding the use of this fixed transmission rate. While exercises involving relatively small numbers of entities pose little potential for network loading problems, larger exercises may well dictate approaches to conserve network bandwidth. This paper provides the results of a quantitative investigation of an alternate laser designation PDU implementation utilizing laser spot velocity and first-order dead reckoning. The target tracking data used for this investigation was obtained from the Deployable Forward Observer/Modular Universal Laser Equipment (DFO/MULE), a system which provides target acquisition and tracking training for Artillery Forward Observers, Naval Gun Fire spotters, and Forward Air Controllers, as well as laser designation and rangefinding training. PDU transmission rates were calculated from this data based on various dead reckoning thresholds, and the overall performance contrasted to the current fixed-frequency approach. The lessons learned from this investigation are discussed, along with suggestions and recommendations for future study.