Brian Davis opened up a one-shot lead after the first round of the RBC Heritage with a fine six-under-par 65 at Harbour Town in South Carolina.
Davis, who is still looking for his first PGA Tour title having penalised himself in a sudden-death playoff in this event in 2010, sprung to life after a bogey at the par-three fourth, chipping in at the sixth before picking up four more shots in his next five holes.
After dropping a shot at the 12th, two more birdies on the return home left him one clear of American pair Kevin Streelman and Charley Hoffman.
Australian duo Jason Day and Marc Leishman continued their good form from last week's Masters with 67s - Day carding an error-free four-birdie round.
Davis, given a two-shot penalty in the play-off with Jim Furyk three years ago after informing officials he had touched a loose impediment with his club during his swing, told the PGA Tour website: "It's good in this game to have a short memory, good or bad.
"I still have people stop me in the street or at the golf club or at airports. People do remember (the penalty), but for me I'm just trying to move on from that and trying to win a golf tournament.
"I was just playing golf. I wasn't worried about my score or about my misses, I was just playing.
"Whenever you get that feeling, it's always a great feeling to have because it's enjoyable. When you're worrying about where you don't want to hit it, which around this course you have to, it can weigh you down."