One was an authentic tugboat for 99.99 and the other and FUhattan clone for 34.99.. the FUhattan clone blows the tugboat out of the water as far as hitting harder, it has a lot of weight to it and just feels like such a better made cylinder mod.. i've tried using different batteries on the two.. I'm a fan of the nitecore 18650's and no difference.. The FUhattan blows it out of the water in terms of vapor production and flavor.. I've used a mutation x v4 and the atty squared v3 on both of them.. I guess cheaper doesn't always mean less quality.. I've hit some 100+$ mech mods and this thing hits just as hard as them.. blows plumes of smoke, where as the tugboat, which I know is authentic, barely compares. What gives?