Well tried refilling my own cartridges instead of topping off and dripping yesterday. Had a real metal syringe, sucked up 10 drops worth of juice. When I insert the needle, even on the very side, it always pushes down the filter material. Squishes it. Can't get the needle down to the bottom without squishing, and I know thats impeding the vaporization quality. Anyone got any tips? I've watched the video 5 times now, still can't do it the way she does.