Ernie Els struggled to build on an explosive start to his second round in the Omega European Masters today.
Starting on the 10th, Els took advantage of playing at high altitude in the Swiss Alps to smash his opening drive to within 10 yards of the green on the 407-yard par four and pitched to six feet to set up a birdie three.
That briefly took the world number two into the lead on his own at seven under par, one clear of defending champion Robert Karlsson who was among the later starters, but the 33-year-old could not maintain his flying start.
He bogeyed the par-three 13th and then failed to birdie either the 14th or 15th, both par fives easily reachable in two, before dropping another shot on the 17th.
Playing partner Michael Campbell took full advantage of Els' problems, the New Zealander also dropping a shot at the 13th but picking up birdies at 14, 15 and 17 to be out in 33.
Campbell then also birdied the second to move into a share of the lead on seven under par alongside Lancashire's Paul Eales, who had eagled the par-four seventh.
Eales is one of the shorter hitters on tour, but aided by the new Callaway ball and thinner air which helps the ball fly further, drove the green on the 330-yard par four and holed out for a two.
Ronan Rafferty is still best placed of the Irish on two under. The former Order of Merit winner will start his second round on two under after an opening 70.
Philip Walton is two shots further back on level par while Peter Lawrie is two over through 10 holes and in danger of missing the cut.
Graeme McDowell's and Damien McGrane's situations are more serious as they are well off the pace on five and six over respectively. Unfortunately for McGrane he only has one hole to play while McDowell still has a chance to address the situation when he sets off this afternoon.