JAMES TOMLINSON bagged three wickets but Hampshire let a good position slip on day one of their Championship division two game with Leicestershire at Grace Road.
Having reduced their hosts to 43 for three, the visitors could not capitalise and saw the home side close the opening day on 334 for eight.
Hampshire captain Jimmy Adams put Leicestershire into bat on a green-looking pitch after winning the toss.
With cloudy conditions as well, it looked a perfect morning for seam bowlers.
And Kabir Ali quickly cashed in with a wicket in his second over, trapping Michael Thornley lbw.
As the ball continued to swing, Hampshire were looking strong.
Ali struck again to remove Ned Eckersley (18) via a Neil McKenzie catch at first slip,
Will Jones, who had battled his way to 23, soon followed, caught behind off a fine delivery from David Balcombe that swung and lifted.
That left Leicestershire wobbling at 43 for three.
But the middle-order pulled the hosts out of trouble, with three healthy partnerships taking them to respectability in the difficult conditions.
Cobb (82), shared stands of 75 with Ramnaresh Sarwan and 76 with Matt Boyce.
Sarwan (36) was undone by an inswinging delivery from Tomlinson and was out lbw.
Cobb was bowled by Sean Ervine, while Boyce was caught at slip for 32, also off Ervine.
However, a seventh-wicket stand of 109 by 18-year-old Thakor (71 not out) and White (53) frustrated Hampshire.