[mothered]

Ah right.

Also remember that It's always the weight of the "Item" (net weight), and not the Item & packaging (gross weight).

Ah gotcha bro. What's the rule of thumb with using the missing item method, as in like maximum weight you can use it for?

Generally speaking, 100 grams Is the maximum.

That said, some carriers round up the weight to the nearest figure, so on these grounds, you can go heavier.