Hello there! I went from a pod kit to an RTA about a month and a half ago because it was becoming too expensive to buy CBD every time I wanted to buy pods. I bought the Hellvape MD MTL RTA and up until 3 days ago, it worked like a dream. The mod I use is the aegis mini and I vape at 14 watts and I'm on the smallest to second smallest hole on the airflow control ring on the md. Nothing has changed there. I change my cotton once a week (even though I don't need to) and until 3 days ago I was using the first coil I installed. So all was fine and well until 3 days ago when I started getting a loss of flavour and a funny taste... it tastes like being punched in the face... metallic and sharp... but not burnt. It won't go away so I take out the coil and wick and give the tank a proper clean and then put in a new coil and wick and the taste goes away. Next day it's back so I change the wick again (even though it doesn't look discolored or burnt at all) and the taste goes away...until the next day. I'm having to rewick every day even though the cotton looks brand new. I checked for hotspots and couldn't find any. I didn't change juice. I just don't know where I'm going wrong here. Has anyone had this experience? Does anyone know how to fix it? If it helps the first coil I had in was the one that came with the tank ( a 2.5mm diameter Clapton coil of unknown material that came out at 1 ohm) and the second coil is one I made (2.5 mm diameter, 26 gauge kanthal a1 and it comes out at 1 ohm as well.) Any help or advice would be greatly appreciated.