A method for determining the release of a peptide from a sustained release polylactide formulation which can be carried out in a shorter time than a real-time method by accelerating the release of the peptide from the formulation. The weighing station comprises a sample handling assembly which is operably connected to a balance, allowing a moveable sample carrier to bring samples into position beneath the balance and sample handling assembly, thereby minimizing the movement of individual samples in order to accomplish weighing. The system may include a tracking frequency selection block for selecting a frequency component of the sensed current and providing same to the first filter, wherein the speed estimate is based in part upon the selected frequency component. The collar is adapted to securely fit between an end of an arrow shaft and the shoulder of the field tip. Accordingly, twisting moment applied to the transfer beam 8 due to inertial force is eliminated in accelerationdeceleration, and loading position accuracy is ensured and a component life can be lengthened. The determination of whether the inter-dependencies are satisfied enables a determination of the predicted health of individual components of the system as well as the predicted health of the overall system.