the other issue is height of center of gravity, which gets higher as you load the truck more.
the allowable center of gravity height is up to 70 inches. the truck floor is about 50 inches high and i estimate the center of gravity of empty truck is probably about 50 inches high as well.
if you were to load up the truck evenly to the roof and up to the max rating of 33,000 lbs you would go just above 70 inches on COG height. of course that is a highly unrealistic scenario.
realistically to push COG above 70 inches you would have to overload the truck.
which is another reason why i would rather drive a half-full truck twice than pack one truck to the roof. it will simply be more stable due to lower COG, in addition to not overloading the axles and not increasing braking distance etc.
but the main reason is i am simply not good enough with planning to get everything in there the 1st time. i am a worthless loser, i know.
the first haul will be mainly to test the waters, to set up base in Orlando and to free up some space in NJ because right now there is so much shit in here i don't even have room to pack.
but without CDL license you can only load it up to 26,000 lbs, which means that after the weight of the truck you can use about 10,000 lbs of load.
now the empty truck weight is about 50/50 split between front and rear axle at about 8,000 lbs each, but the front axle has a max rating of 12,500 lbs ( the rear is rated 20,000 lbs )
so the trick is not overloading the front axle because it's just 4,000 lbs away from being overloaded already at empty, versus rear axle that is 12,000 lbs away from overload
basically you can only overload the rear axle if you have a CDL license that allows you to use 17,000 lbs of load. without CDL license you can only use 10,000 lbs load so even if 100% of that load goes on rear axle it is still within axle limit.
but if even half of the 10,000 lbs load goes on front axle it will get overloaded.
that said i will probably have only about 3,000 lbs of load so it won't matter where it is placed but i will still try to be Autistic about it and use the most ideal weight distribution possible ...