Just noticed this... Major updated Merkava. Looks to me like Chels has fixed all the issues of the previous versions. Details are scant (as usual for mini e-cig sadly) but seems to have replaceable under-coil air-holes, 1.4, 1.7, 2.0 nd 3.0 mm. They have narrowed the chimney/chamber so the air-locking issue should be gone, the deck looks similar but better layed out maybe. For $50 its a bargain!!
Merkava - Mini ECIG
Merkava - Mini ECIG