The basis of this website is to share information so others can learn from reading these threads. When an incorrect statement is made we are each obliged to correct it, not give it a rest.
This thread is about about moving the tank out of the cab for safety. If that is done a roll over vent valve should be used. It is a $11.00 item that could save a life. Even if the stock tank is left in the cab a rollover vent valve would be a good addition.
While your statement that no system is foolproof is correct, providing data on options to make the fuel tank safer is good information for our Stovebolt readers. What they choose to do with the information is just that, their choice.
I think I will go take a rest now.

John