me and my friends do green dragon all the time.
i try to end up with a mix where 1 shot = 1 gram of bud used to make it
we take from 1 shot to several shots depending on how much your tolerance is and how brave you are
but unless you know how much weed they used to make that amount of liquid you will have to use trial and error
but I say u must eat 1 gram worth of weed in liquid form to blast off into space.
theres a video on my sig about how to make it yourself.
also when we make it the mix is undrinkable cuz its straight everclear with some water evaporated out of it. so if you try to shoot it, it will burn your throte so once we make it, we mix in 50% water to make it drinkable.