I've been watching reviews of the Zeus from Geekvape and am really intrigued by it's top airflow and the fact that it is less prone to leaking. I got my ... kicked repeatedly by a Griffin 25+ and swore I'd never touch another rta but after seeing the Zeus I'm rethinking that. I really like the Zeus but I'd prefer to wait until other folks on ECF share their thoughts about it. Besides the OBS Engine what are some other top airflow RTAs that are somewhat leak resistant?