Michael Campbell warned there was still plenty more to come after storming into the lead in the Malaysian Open.
The New Zealander chose to play in Kuala Lumpur this week rather than defend his Australian Masters title, reportedly lured by a generous appearance fee to Saujana Golf Club.
It was a decision that was looking increasingly like the right one from his perspective after a superb second round in more sweltering conditions.
And the Kiwi offered little comfort to his rivals after adding a 67 to his opening 69 for an eight under par halfway total of 136, insisting his game was only at 65-70 per cent capacity.
It was still good enough for a two-shot lead over the field before a violent thunderstorm brought play to an early end for the second day running with 66 players still to complete their second round.
Compatriot Elliot Boult was safely in the clubhouse on six under after a fine 66, the best of the tournament so far, while Ireland's Padraig Harrington was six under with four holes to play.
Masters champion and pre-tournament favourite Vijay Singh was one of six players a shot further back on five under with two holes of his round to play.
The highlight of Campbell's round was an eagle on the first hole - his 10th - when he holed from 93 yards with a sand wedge.
After waiting nine years to hole a full shot on the Tour, it was Campbell's second in 24 hours after also pitching in for an eagle on the fourth on Thursday.
The 31-year-old said: "Holing two shots within 24 hours in unheard of for me, it's unbelievable. Again I didn't see it go in but apparently it span back from about six feet.
"I didn't play that well to be honest. There were a few good birdie putts, but little besides that. If you take away the two shots I've holed it's not really that good but I'm not complaining.
"Eight under is going to be around the lead at the end of the day but Vijay is the guy to watch out for.
"I've played practice rounds with him a few times and it would be good to go head to head with him the last two rounds."
He missed the cut in Sydney last week which was a rare blip over the last 18 months for Campbell who won three times in Europe last season and had three second placed finishes.
"I'm probably about 65-70 per cent at the moment," Campbell insisted. "It's creeping towards what I want to get to, but I'll be working on a few things."
Star attraction John Daly looked certain to make the cut on level par after a second 72, although the double Major winner was disappointed to drop three shots in his last four holes.
