Back stiffness limiting Tiger; 'best to be smart'

"This is kind how it is; some days I'm stiffer than others.''And that continued a common refrain from Woods in his four tournament starts since winning the Masters in April.He missed the cut at the PGA Championship, tied for ninth at the Memorial Tournament, tied for 21st at the U.S. Open and then missed the cut three weeks ago at The Open, where he never seemed to get on track in the cold weather.Temperatures during the FedEx Cup playoffs will be considerably warmer, and that figures to help the 43-year-old Woods, who is nearly two full seasons into his comeback from spinal fusion surgery that rejuvenated his career and saw him capture his 80th PGA Tour title last September at the Tour Championship and his 15th major title at Augusta National.But Woods has never looked completely right on a golf course since. That's a good feeling.''Ever since winning the Masters, Woods seemed a lock to be a playing captain at the Presidents Cup in Australia, but hedged on that Wednesday, saying he is not a lock to pick himself.The top eight in the points standings through next week's BMW Championship automatically qualify, with Woods getting four captain's picks that he will make on Nov. 4."I'm like all of them, all the guys in the room,'' Woods said, referring to the dinner with potential players on Tuesday.