SHANGHAI, China, April 13 Raphael Jacquelin turned in a four-under-par 67 Friday for a two-stroke lead halfway through the Volvo China Open.Jacquelin's lead could have been bigger but he bogeyed his last two holes. Still he is at seven-under 135 after two rounds. Adam Blyth, who also shot 67 Friday, is in second at five-under 137. Scott Hend and Andres Romero share third at four-under 138.Windy conditions again affected play.Jacquelin opened on the back nine Friday with birdies on his first three holes and beat par on 14 and 17 to get to eight-under. A birdie at the fifth hole put Jacquelin at nine-under but he bogeyed Nos. 8 and 9 to settle at seven-under."When we started, it was dead calm," said Jacquelin of the weather conditions. "I was lucky enough to make three birdies at the start and I was playing really well. "Like yesterday I made two bogeys at the end, but that is the game, especially on this course in these conditions." Copyright 2007 by UPI