I would also like to know about using clear tanks.  I have been using Smoketech cartos with my KGO 1100 ma battery.  I think resistance is around 1.7 ohm.  I have had no trouble with this.  I wanted an extra kit and bought a kit with 2 clear cartomizers.  Both were filled and soaked.  when tried, both tasted burnt immediately.  I wrote the manufacturer, but he threatened to sue me if I posed our conversation, and he would not refund the cartos.  
So, do these ALWAYS do this?  And if so, why would anyone buy them?  How can this be avoided? I am using 40PG/60VG.