I confirm most sub 0hm tanks (probably not all of em but mostly smok) are made for what we call dtl or direct to lung inhales which is like sucking on a straw, i can't really explain it better than this so may someone do a better job if needed. I would still consider keeping your smok tank because who knows maybe someday you'll find you want more vapor production,more flavor, or just try something new. If you're absolutely sure you'll never have an interest for such things then yeah maybe you could sell it and get a better mtl suited tank
