Would this be a parabolic bend in a rod? Seems fairly even

How does the bracing system in structures help in reducing lateral displacements, axial force and bending moment? - Quora

Rods And Reels For Smallmouth Bass - In-Fisherman

Wiggins' Case for Glass Rods: The Defense Rests - Major League Fishing

Abu Garcia Ike Delay Series Rod Review - Wired2Fish

MERCURY KNOW-HOW: Murray on Choosing the Right Drop-Shot Weight - Major League Fishing

Spiritfish

The ultimate guide to bomb and wand rods

Rod Action: Choosing The Right Tool For The Job - The Fisherman

Kayak Fishing Archives - Hawaii Nearshore Fishing