The Zlide coils are 1.2ohm to fire at 13W, the Target Mini2 coils are .6ohm to fire at 16W - I normally use the 1.0ohm ceramic coils on it that fire up to 14W, the pipe coils are 1.6ohm to fire at 7-11W, the Caliburn is 1.4ohm to fire at 11W.
1.2+ should be fine with the watts some of them are shy of 4v.
The 0.6 however only barely cracks 3v with change. a weak vape like that will cause crap pooling in the tips
There hasn't been a problem with the Target Mini2 using the meshed .6ohm tea fibre coils at 16w with their range being 16-22w. I only bought them because the vape shop was out of the 1ohm ceramic coils with a range of 10-13W. I don't notice any crap pooling but rinse all the tips off a couple of times a day to keep them fresh anyway.