The XC210 was designed specifically for tyers and anglers wanting a better hook for perdigon-style flies or oversized bead flies. It features a downturned eye to roll the bead downwards to the eye, exposing more of the hook shank which gives oversized beaded flies more realistic proportions. The mega gap allows the hook point to find the fish regardless of what you tie onto the shank. The XC210 pairs especially well with Umpqua's Jig Bomb beads, but also works with standard slotted or even a countersunk bead.