I use smolder on my upper and lower eye line and it never smears. Before I started using the paint pots, my routine was to put UDPP on my eye (none on the bottom lids). Go over that with a ccb or a paint and then line my eye w/smolder. I would apply my es and then reapply smolder over it. (both top and bottom). I would then apply Benefit's SheLaq to the lower line to keep it from smudging or running. My liner stayed in place until I removed my mu.
Since I've been using the paint pots, I've stop using UDPP and the liner sealant and just put the paint pot on my upper and lower eye line and then apply smolder. The paint pot holds it in place all day.
Only when my allergies are acting up do I use an eyeliner sealant.
I'm quite sure there are others who have their tricks for keeping their eyeliner in place until they remove it.
Hope this helped some.....