It could be some bad attys or the nasty pepper coco taste of the casablanca from bwb. I just cant enjoy the flavor. However im new to attys and the ones i have glow red within 0.4 seconds of hits the switch on the ego. So much so that it melts the plastic on the factory pre filled carts. Ive blown them out,stuck paper towels in there over night,primed them well,etc. I guess im just a carto fan for now