Ducati’s Casey Stoner continued his recent impressive form in today’s opening free practice sessions at the Laguna Seca raceway, lapping under his pole position time from last year by almost half-a-second using Bridgestone race tyres this afternoon. Stoner, winner of the last three races, was quickest in both of today’s sessions by a notable margin, and led a quintet of Bridgestone-shod riders in the morning practice hour. In the afternoon, with track temperatures considerably higher, he set his quickest lap of the day on his final tour of the 3.610km Laguna Seca track.