Ernie Els has been living on the FedEx Cup edge for the past month. The World Golf Hall of Fame member must step it up a few notches this week at the BMW Championship golf clubs for salenear Chicago if he wants to reach the Tour Championship next week. Els was outside the top 125 on the points list when he went to Greensboro, N.C., for the Wyndham Championship last month, the final tournament in which he could qualify for the PGA Tour playoffs. Els tied for 30th to finish 124th and barely made it to The Barclays, the first leg of the playoffs. A tie for 32nd at that event put Els into the Deutsche Bank Championship. A tie for 16th then placed him in the BMW field, where Els is 68th out of 70 players. Now, Els must finish somewhere in the top 10 this week to reach the Tour Championship. That would be bigCallaway RAZR Hawk Fairway Wood for the Big Easy, because he loves the East Lake Golf Club. Els has qualified for the season-ending event all four years since the FedEx Cup was created in 2007, and hes finished among the top 10 in Atlanta three of those years. In eight career starts at East Lake, Els failed to finish among the top 10 only once. Els is the only player in the field who hasnt had a single top-10 finish this season. His previous lows for top 10s were four in 1994 and 1998. Els has averaged seven top-10 finishes per Callaway Diablo Octane Tour Fairwayyear in each full-time season on the PGA Tour.