HOULTON, Maine – Legendary paddler Clint Cushman, 85, netted another first-place finish in Saturday’s annual Down River Point Series canoe and kayak race on the Meduxnekeag River in Houlton. Two years ago, Cushman and his long-time paddling partner Peter Blood struggled with low water levels, bony conditions and multiple portage points. But there was no scratching on Saturday. The water was surprisingly higher this year, Cushman said after the r…