Does it take a while for the carto to start to absorb well? I dripped maybe 5 drops in the fresh carto and filled up the tank. Took some good primer puffs, the juice level went down as expexted and started vaping. I later looked at the filler and it was white as if it needed juice. Is that normal or does it take time to break in? Maybe drip a bit in the top now and again? Should there maybe be a hole at the top and bottom of the carto instead of 2 at the bottom? Not sure.