The original Clouser Minnow was tied on a Mustad 3906B, a turned-down eye that became a turned-up eye when the weighted dumbell eyes were attached. Gave a good up-down jigging action that the Susquehanna smallmouths Mr. Clouser was fishing for seemed to like. When the fly made the inevitable transition to saltwater, I don't think there were many TDE eye hooks, so most of us just tied them on straight hooks like the 3407 or 34007. Doesn't seem that the switch to the straight hook has diminished the effectiveness of the fly because they catch just about any fish that swims, and I tie most of my freshwater ones now on the 3366. I have used some of the Eagle Claw 413 jig hooks (60 degree bend) for a few peacock bass Clouser variations; don't know if it makes much difference, but the hooks are inexpensive and the peacocks like them.

Regards,
Scott