The second round was suspended for darkness as the tournament has had its share of weather problems. There were two stoppages on Thursday that forced the suspension of the first round, which was completed Friday. There were also two delays on Friday because of weather problems but the second round is scheduled to resume at 10:30 AM ET Saturday morning with half of the field left to finish the round.
Herron got started in the second round with a 15-foot birdie putt at the first. He added a pair of five-footers at three and five and holed a 30-foot birdie putt at the 616-yard, par-5 ninth.
Herron reached the green in two at the par-5 11th and two-putted for birdie to reach 8 under par. He sank another 30-footer at the 15th hole and took sole possession of the lead with a birdie at the 636-yard 17th when he got up and down after missing the putting surface with his second shot.
'I have played well,' said Herron, who tied for 14th last week at the PGA Championship at Oak Hill. 'Last year I missed the cut but I think I was a little tired. I have played pretty well here.'
The solid showing at the PGA Championship gave Herron hope after he missed the cut in his four previous starts. He recorded three top-five finishes early in 2003 but has struggled and had not finished higher than a tie for 14th since mid-March.
'I got a little down when I missed four cuts in a row because I felt like I was playing pretty well,' said Herron. 'After last week, I really started scoring well and of course this week I have scored very well.'
Barlow carded back-to-back birdies at four and five but made his move up the leaderboard on the second nine at Montreux Golf and Country Club. He racked up back-to-back birdies again on 11 and 12 but tallied three birdies over his last four holes to polish off a bogey-free round of 7-under-par 65.
Barlow only got one hole in on Thursday so it was a marathon 35-hole session on Friday.
'It was a very long day. But the longer the day went on, the better I started to play,' said Barlow, who has battled injuries over the last two years on the PGA Tour.
Kirk Triplett is 3 under through three holes on Friday and is alone in third place at 8 under par.
Guy Boros posted a 6-under 66 in the second round to match David Sutherland, who carded a 67 Friday, in fourth place. The duo stands at 7-under-par 137.
Brian Gay (69) and Nick Watney (66), who won last week on the Canadian Tour, are in the clubhouse at 6-under-par 138. Dennis Paulson is 6 under par through eight holes.
J.P. Hayes is 5 under through eight holes, while Paul Stankowski is also 5 under waiting to play the fifth hole.
John Daly withdrew on Friday after an opening-round 74.