Hanover — Even athletes as experienced as senior Kelly Ludew sometimes have trouble finding their rhythm. A mighty contributor to the Lebanon High girls track and field team since her freshman year, the hurdles ace struggled with form early in her senior campaign. It began over the winter during the indoor season, when her fourth-place time of 9.39 seconds in the 55-meter hurdles at the New Hampshire Division II state championships was her worst showing in four years competing at the meet. Having difficulty maintaining form while three-stepping between hurdles, Ludew’s struggles continued into the early part of the outdoor season. It wasn’t until the …