Methods and apparatuses are provided that allow for the synchronization of an operating point transition in an embedded system environment. The resulting compositions, comprising a hydrotalcite and inorganic buffer, can be used in the manufacture of articles while still retaining the advantageous physical properties of blended polycarbonate compositions with improved hydrolytic stability. The pair of occupant seats includes a driver’s seat and a passenger seat and are arranged side by side in a vehicle width direction substantially orthogonal to the front-rear direction. The launch vehicle stage does not include a relative navigation system.