NoDid you ever take them coils apart and look at what the wire and the cotton directly in contact with the coil look like? I usually break apart my Aspire and Nautilus coils when they taste bad, they are pretty nasty inside...
Usually I'm at work and just get frustrated and throw the coil in the garbage. But these coils are .5 ohm and are pretty big. The top hole for the chimney is big enough to see the coils and the cotton around them.
If I'd had to guess the problem

Cotton packed to tight and can't wick fast enough to keep up with my vaping.
Just a guess



so it makes it a little top heavy.