I’ve used pencil eyeliners for years, but recently expanded my collection with a black liquid liner. I use it when I want a sharp line or a little extra “wing” for drama.
At first, I couldn’t seem to get a smooth line, then I discovered this little secret. Remove the liner wand and hold it out in the air for 10 seconds or so before you start to line. It lets the liquid eyeliner dry a bit and hence produces a smooth, clump free, blotch free line!