I have watched it many times at Bears. Once I get some molds that will allow me to do it, I will give it a try. ( The 2 molds I have right now, wont do it, well, not the way you did it, by pouring first color and not injecting it )
I do have one question for you though. Unless I misunderstood what you said. Your not sucking up the plastic with the injector, but pouring it into the injector ? Are you taking the tip off and pulling the plunger back, then pour into the injector. The put the tip back on ?