I'm wondering for those that are heavy wowboy users if you noticed a change in flavor on the last batch # 31102013. I ordered 5 bottles of it and using the set up I always use, Zues, tank and 3.0 SC carto it taste off. It has a slightly bitter taste, more mint and less chocolate essence. I tried steeping it for a week ,but very little difference. Maybe it just my taste buds playing tricks on me, but wowboy is my all day vape, so this is a bit bothersome.