If God created anything lazier than me He kept it to Himself therefor I am an expert at finding the easiest and quickest way to do things. Being cursed with the patients of a ferret on .... if I had to 'drip a few drops', 'wait a few minutes', repeat, wash, rinse, repeat, etc., etc., etc. I'd end up buying a carton of cigarettes just to calm down from filling a carto.
I've found that the process can be speeded up dramatically, (if you're gonna do something ya might as well do it dramatically), by adding drops to the mouth of the carto until the liquid sits on the top of the filler without spilling over into the inner tube. Place a finger over the hole of the base, place your lips, (crusty, disgusting, chapped and reeking of bad breath lips if you're a male... beautiful, lush, sweet tasting, alluring and inviting if you're a female), over the mouth of the carto and blow gently until the liquid is forced toward the base.
Simply repeat this process several times until the filler at the top of the carto remains moist then install your drip tip and have a ball. Whole process takes maybe 90 seconds. Top off the carto by squonking when necessary. (There's that word again... I just love it. Squonk, squonk, squonk.)
Jack