Extras are a bonus. I've only completed 2 trades and have one in transit. I ALWAYS give extras whether I suspect to get some or not. I don't like to say I am sending extras as I do not want my partner to feel an obligation to send some in return. If you can, awesome but it is not an obligation. All 3 of my trading partners so far are in the greater Chicago area. I've sent all of them 2 Hi-Res as extras as well as sending some Flower Power, Hop Ranch, and Nugget Nectar.