Hey guys im looking for a affordable 25 mm rta I have a herkales rta now just getting tired of same Ole same Ole.From every review I see the OBS engine is a very nice rta that has great flavor and doesn't leek. That's right doeant leek, my herkales will only leek a tiny bit but with my new mod a hcigar vt 133 I don't want any juice hitting it . So if you have the engine what's your take on it ? Thanks guys