How steady is the Universal Mount?

I just recently installed the new universal mount that WeatherFlow offers on their website Tempest Universal Mount – WeatherFlow at my PCB location. Unfortunately it didn’t resolve the vibration issues (I do have a Tempest sensor located around 2ft AGL for rain). But after tightening everything up, I noticed that the arm was still fairly easy to move up and down. Should I be concerned with hurricane force winds moving the arm and causing my Tempest not to be level?

get another bolt to put in the slot to stop it from moving…as for the 'canes I wish you luck