well if you've set your carry weight to 99999, we're in the realm of cheating now :p
and since we're here why don't you just replace that carry-lots-weght method with the no-weight-check method in the first place..
go open up your ddraw.ini and replace valu of "CritterInvSizeLimitMode=" from whatever it was to 4 and also "CritterInvSizeLimit="
from whatever it was to 2000000000 that's two american billion or 2kkk.
this way you and your npcs will only be checked for item size instead of item weight, and limit is 2kkk, the item weight is checked only for items in the item slots, like armor, left hand and right hand items, so likely you'll never get passed what is available for your character. item size is always a smaller amount tnan item weight, and skipping the weight check might help you avoid Nevada Band traps set for cheaters ( this also helps avoid certain weight checks in order to travel tov the DLC area and back)..
This carry weight is also applied to your NPCs though they'll not travel to DLC anyways, yet they can carry lots of other useful items (in other fallouts it helps to cary ammo, though in sonora ammo doesn't weight nuffin, since it's divided into single units like 1x bullet