Good video Rip, one thing to add to the video though, when filling the tank I find that if you slide the carto down slightly (as you showed) you don't need a needle tip, just tilt it slightly and put the tip of the bottle at the edge, the juice will naturally follow the side of the tank and will not drip into your carto. It's fast and easy, it how I've always filled them.
Thanks for helping out the newer users with the videos, keep it up bud.