By Tony Jimenez WOBURN, England (Reuters) - World number 15 Gerina Piller was disappointed not to make full use of her extra length off the tee as the American slid to a 73 in the Ricoh Women's British Open first round on Thursday. The 31-year-old from New Mexico, who made her Solheim Cup debut in the victory over Europe in Germany last year, is 12th on the list of biggest hitters on this season's LPGA Tour. Piller normally booms out drives at 260 yards-plus but there was no need to risk the longest club in the bag in the fourth women's major championship of the year at Woburn, with the par-72 Marquess Course relatively short at 6,448 yards.
