I travel with full tanks about 50% of the time, basically if we are going somewhere that I am not 100% confident of the water source. Have not had an issue with the tanks, nor can I detect any change in towing characteristics of fuel economy.
The flimsy straps on the bottom of the FW tank were to hold in place while the top brackets were installed. Those brackets are designed to support the full tank in motion. However I still replaced the straps with heavy gauge steel supports, just in case.
2007 Chevy Duramax LMM/Allison
2012 Jay Flight 29QBH
2012 Jay Flight 26BH (Sold)