Hi guys this is something that has been bothering me sing my first RTA , im using a sigelei 150 w and a STM at the moment bit as i said its been happening since my previous tank snd is abit annoying my happy pkace on the ohm reader is 0.6 at between 25 and 35w and i seem to get a buzzing afterburn sound after every drag on my tanks does anybody else experience this or am i doing something wrong on my tanks?