I find carts come in various shades and I've definitely got excellent carts that seem to be two-tone. Fills should be equal but sometimes we can overthink this stuff- take a hit and if you enjoy then all is good in the world amigo! I only buy carts from vendors that I completely trust.
If you don't ultimately trust it then don't vape it and obviously if its a measurably short load then the vendor should respond to resolve...
If you don't ultimately trust it then don't vape it and obviously if its a measurably short load then the vendor should respond to resolve...