I would love some opinions on why there is such a notable difference in flavor. My "go to" flavor is Smilin Premium 36. I bought the pre filled and love em. So I bought a bottle of the juice to refill. Then I bought some blanks. Then I bought an eGo, so I filled a mega carto. While the pre filled are so good even if I refill, the blanks and mega aren't the best. They're ok but all I taste is a strong cool menthol flavor. The pre fills I taste other flavors. Anybody know why that would be? Different poly? Also wonder if I got a tank, would the flavor taste more like pre fills (and refilled - pre filled) or blanks/megas? Or would I get lucky and the tank would give me the delicious flavor I get in the pre filled with added juice? I would love to not have to drip a hundred times a day but.......