You might want to check out Kat Von D tattoo liner. It has a brush tip, which works great for that extra precision. I use it exclusively for my 'liquid eyelining needs'. I think the formula is great. It doesn't flake on me, and lasts a long time. Sometimes, I won't be able to take it off before going to sleep, and my eyeliner is still intact when I wake up. I got a mini from sephora set last year. I haven't run out yet, but bought a full-sized one already, just in case.Â
BTW, I have the Urban Decay liquid eyeliner too, and didn't like it. It flakes in one piece!Â