Shimano Tcurve Deep Jig Overhead Rods The Ian Miller-designed Shimano Tcurve Deep Jig Overhead Rods range utilises high-end TC4 three ply graphite weave blanks, which are extra strong but light in weight. The guides are 'Tangle Free' Fuji K series, with Alconite inserts, positive lock Fuji reel seats and gimbals, comfortable, well-shaped EVA grips, and easy-to-transport two-piece construction — although you wouldn't know it from the way these rods perform.