Na Yeon Choi shot a 6-under 66 on Thursday to take a one-stroke lead overMorgan Pressel and Karrie Webb after the first round of the LPGA Tour'sseason-ending Titleholders.Choi, the LPGA Malaysia winner last month, birdied five of the first eightholes on the back nine at Grand Cypress before dropping a stroke with a bogeyon the par-4 18th.``I think from after the British Open, I had a great feeling about mygame,'' Choi said. ``After that, I played like consistently, I think, and thenespecially at Cheap Golf Clubs I had a great final round. I shot 8-under par.And then I think I took something from Mizuno to here.''Defending champion Maria Hjorth and Cristie Kerr shot 68, and AnnaNordqvist was another stroke back along with Paula Creamer, Sandra Gal, Mi HyunKim, Candie Kung, Azahara Munoz and Dewi Claire Schreefel.Top-ranked Yani Tseng had a 70, and Michelle Wie opened with a 71.Pressel is winless on the tour since the 2008 Kapalua LPGA Classic.``I think I just need to become comfortable again being around the top ofthe leaderboard and giving myself chances week in and week out,'' Pressel said.``That's why I play. That's what I'm here to do. I come to a tournament, and myfirst goal is to win.``I felt good out there today. I didn't feel like I was pressing too hard.I know that it's I have a bad habit that I've gotten into and that's whenthings start to go well then I start to press and almost become afraid of thehole. So I was able to stay patient, stay with my Cheap Golf Clubs throughoutthe entire round, so hopefully I can continue to do that for three days.''