CLUBHOUSE SCORES: GB & Ire unless stated
-11 R Goosen (RSA) -9 A Scott (Aus) -8 M Fraser (Aus), M Kaymer (Ger)
Selected others:-7 K Ferrie, M Laird -4 D Clarke, Els -3 R McIlroy, A Cabrera (Arg), L Westwood Level G McDowell, C Montgomerie +2 J Daly (US), N Faldo
Scottish Open - Day two highlights
South Africa's Retief Goosen missed his own course record by one shot as he fired a 63 to set the pace in the second round of the Scottish Open.
The 2001 champion is on 11-under and leads by two shots from Australia's Adam Scott, who went round in 67.
Arizona-based Scot Martin Laird, making his European Tour debut, and England's Kenneth Ferrie finished the day four shots behind Goosen.
Marcus Fraser and Martin Kaymer are three behind in joint third.
Goosen has won in Asia, Africa and the United States in the last nine months, but he has not triumphed in Europe since the 2005 German Masters.
A trip back to Loch Lomond, where he won the title in 2001, has provided him with the chance to end his European drought.
"I do like it here. Obviously, playing a golf course that you've played well around before, you always feel like coming back," admitted Goosen.
"I've shot 62 around here twice, once with placing and once without.
"The golf course is fairly generous off the tee - and I'm not one of the straightest hitters."
Goosen will be partnered by Scott in the third round on Saturday, with the former world number three slowly rediscovering his form after a slump.
Scott was watched by his tennis star girlfriend Ana Ivanovic, and admitted that "all areas of my life are in a good place right now".
Lee Westwood, who was beaten by Kaymer in a play-off last week in Paris, was much improved both in his golf as well as his health.
Westwood admitted on Thursday that he wished he had pulled out of the tournament after being given anti-biotics for a chest infection.
But it was a different story on Friday as he fired a 66.
"I'm glad I played now," said Westwood. "I knocked the flag out all day."
At three-under he was on the same mark as his playing partner Rory McIlroy, who called a penalty on himself when his ball moved a fraction after he had addressed it on the 8th.
Ian Poulter, the third member of their group, slipped back to one under with a 72.
That looked set to be the cut-off mark, but right at the end of the day's play the group on level par - including Colin Montgomerie, who birdied his final four holes, and defending champion Graeme McDowell - were let in by Swede Martin Erlandsson finishing bogey, bogey, triple bogey.
First-round leader Richard Green is five behind following a 72, while Laird carded a 70.
The Scot was still hopeful of a debut victory on his return to his homeland.
"Obviously Retief is a great player and he is not someone who is likely to go backwards," said Laird.
"I am going to have to go out and play two good rounds, but you never know."