I agree with kaboom. But it would be worth while to load your TT normally but with nothing in the garage. Then go to a scale and weigh just the left side, both tires. Then repeat for the other side. Not sure how balanced it is before even putting anything in the garage. It seems it would help with your distribution. You may want to make storage adjustments up front first before adding anything to the garage.
2016 Ford F-150 4x4 Supercab XLT EcoBoost
2012 Salem Cruise Lite 221RBXL, Andersen No Sway WDH, (2) Honda EU2000i's