I use a strand of 2mm silica with 4-5 wraps of 0.20 Kanthal. Then, using a piece of the wick I cut off from the ends, I add a strand or two above/aside the coil - just enough to plug the gap that the silicon bung doesn't fill. The object is to plug it enough that it doesn't flood, but not too tight that it strangles the wick.
For quick vaping add a drop or two of juice straight onto the newly built coil/wick assembly before you put the tube thing back on. Or just let it sit upright for a few mins before vaping. Oh and don't be put off if it tastes rank for the first few draws - just don't inhale them, it should clear. Oh, another oh, take a few draws without pressing your button first too.