Briny Baird’s caddie holds the flag on the 17th green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
George H. W. Bush, 41st President of the United States, looks on as Adam Scott and David Toms play the 12th hole during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Adam Scott blasts out of a sand trap around the 12th green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
John Daly awaits his putt on the third green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Stuart Appleby lines up his ball for a par putt on the 15th green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Stuart Appleby signs autographs after he finished his second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Cliff Kresge blasts out of the sand trap around the second green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Bob Estes acknowledges the gallery after his putt on the second green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Scott O’Hair blasts out of the sand trap around the 11th green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Charley Hoffman lines up his putt on the 11th green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Jason Gore tees off the fourth hole during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
Michael Boyd reacts after a chip-in birdie on the 16th green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com
D.J. Brigman lines up a bogey putt on the 16th green during the second round of the 2007 Shell Houston Open Friday, March 30, 2007, on the Tournament Course at the Redstone Golf Club in Humble, Texas. PGA Tour - 2007 Shell Houston Open - Second RoundPhoto by Kevin C. Cox/WireImage.com