So I have gotten used to filling my cardomizers with e-liquids and I love how it saves me a lot of money rather than buying pre-filled codos. However, I have noticed that after 4-5 re-fills, the cordos start to get really resonated, after about half the amount of smoking, I start to get a noticeable resonated flavor. Can someone recommend a way to clean the cardos so that I can smoke them the whole time with better longevity of the true smoke flavor?