The pull-down effect was particularly severe. I tried a three-element Yagi antenna, but it only provided a bandwidth of 12/10 meters.
The remaining frequency bands were unusable due to excessive attenuation, resulting in excessively high standing wave ratios.
Specifically in the 20-meter band, almost all of the antenna was extended, drooping like a fishing rod.
Therefore, I recommend using a 1.2-meter aluminum pipe. If you absolutely need to use a pull rod, then the pendulum should be suspended at an angle to counteract the downward force.