I held off until now to get 510 cartomizers because I saw that there were improvements happening the past few months. I have a Tornado (same as the EGO) from the devil headed company and
blank 510 cartos from Nhaler (510 Mega Cartriges (5 Pack)) that hold more fluid than any other method I have tried before. Much more than the mega joye atty and cart. Probably almost 1.5 ml. I put 40 drops of
juice in them. They work well, but let in a little too much air (IMHO). They vape okay at 3.2 ohms and not as hot as the Joye mega atty and carts at 2.3 ohms. But boy do they last!