Imperial is just easier
A Drachm is 1/8 Ounce and a Dram is half of that. So 16 Drams in an Ounce and 16 Ounces in a Pound. So obviously a Pound is 1/14 of a Stone. 14 Stone is half a Quarter and a hundred weight is, wait for it, 112 Pounds. Finally a Ton is 2240 Pounds. And those bast**ds want us to count in 10's and confuse us!!!