I found, being somewhat new to vaping that I had to learn the different tastes when something is not working right. This is what i mean. Sometimes I would get a bad stinging in my nose and throat. I think this is from the alcohol because it only does it with juices that have alcohol in them. In this case, I would actually crank up the power and that alcohol sting, would turn into a nice throat hit. The sting would go away, a nice presence in the back of my throat would be all that is left. The next bad vape, would be the scratchy in the back of my throat that could make you cough. I thought that this was a dry hit and in a way, it is, but it happened to me when my wicks were wet. I have discovered that this is not an entirely dry hit, but it is where part of the coil is not touching the wick or juice. The coil being in the air would give this scratchy throat hit. Next, would be the normal dry hit. This, to me was the easiest to identify because I would get a lot of flavorless vapor when it first starts. It wouldn't be that harsh when it is just starting to get dry, but it would be different, muted and maybe wicky tasting. I pulled my hair out with dripping atomizers, the vivi nova, bottom coils, and genesis style atomizers. Now, I love dripping and the bottom coils, I'm ok with the vivi nova, and still am going crazy with the genesis. I have spent a lot of money as well. The point is, I love at least part of it, it is only a matter of time before I love all of it. Hang on to the stuff you buy, it won't likely go to waste. Stick with it, if you are new like me, we can take the journey together (corny I know) I tried to dive into different things at once, which was a mistake. I should have, for example, dripped and only dripped for a while, then gone to something else, etc. I have put away my genesis for the time being, and am dripping and using bottom coils and everything is easier. Good luck.