Ive been using rda's for a little while now and i recently got a new loop by geek vape and the first and second setup i had on it was amazing but after that every setup ive had on it (3) started tasting like it had a metal taste and didnt tast like the juice what so ever. Im wondering if im not putting enough cotton even though they was tight or that it could be because the cotton bacon is like 3 months old but its been in the bag please help and thanks in advance