Finally! Other people that share my carto love! I, too, have tried many different things out, but I keep going back to my cartos. I use mostly smoke tech, but some boge as well. Haven't really had any problems out of either, so it just depends on where I'm ordering from. If I'm ordering other stuff, I'll usually toss a few in the order just to have extra on hand. I use mostly tanks with mine. I use prepunched in the smoke tech tanks because they fit better, but I do punch my own some. They seem to deform just enough to be too tight to fit in the tanks though. I have one triple v poly tank with silicong end caps that they fit well in, so I'll probably be ordering some more of their tanks with the silicone caps and the side fill screws in the future. I absolutely love the side fill screw.