Vertical bend of tenkara rods is very important for some good reasons:
1. Most of the time a tenkara fisher lands fish with a tenkara rod on a vertical position and grabs the line with another hand. This is the weakest rod position.
2. The lifting power of the rod is stronger on the lower section. Rod bending is in the act of transferring the energy from the tip to the butt section.
3. Tenkara rod is long. A good bend will reduce the torque force where the angle