Tim Simpson just knew he had to do something about his putting.

He was getting some flak over it, and it was hampering his strong tee-to-green golf game. So he and fellow golfer Morris Hatalsky made "major changes" in his stance and stroke the day before the start of the $1 million Disney Golf Classic.Whatever they did, it worked. Simpson, the defending champion, coasted into the lead Wednesday with an 8-under-par 64 and had a two-stroke lead over Bill Buttner going into today's second round.

"I was struggling with my putter. I just had to change, it was so bad," said Simpson, who has three PGA Tour victories in 13 years. "Now, it's more like I did in high school."

Both Simpson and Buttner, whose 66 included four birdies and an eagle, played at the Lake Buena Vista Course, considered the easiest of the three Disney layouts, all par-72s.

Three strokes back were five golfers. Three of them - John Mahaffey, Paul Azinger and Mike Smith - turned in their 67s on the Palm, considered the toughest course.