Justin Kubatko: George Hill’s 3P% has … Justin Kubatko: George Hill’s 3P% has improved from 31.4% last season to 51.3% this season. If it holds, it would be the biggest one-season improvement in 3P% in NBA history (min. 100 3PA each season). Toni Kukoc currently tops the list, going from 26.2% in 1999-00 to 44.6% in 2000-01.