Fuel tank vent in trunk

I have a question/concern after installing my new fuel tank vent. See attached pic, I ran hard line and everything is pretty solid from trunk floor to the mount higher up in the trunk (no movement). Now when the car is rolling down the road going over bumps and such, is there any concern with this? Just wondering if the trunk will flex when going over bumps?

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think I`d pull that sucker off, and put a couple coils in the line up hi, and run it back down thru the trunk floor, ''no fumes in trunk , still be like a roll over valve .