I recently purchased the DSE 901 with auto batts. I really like them, however after reading more post I'm wondering between the Mega Titan 501 and DSE 905. I am needing a longer inhale time (?) and longer battery life and I like the vapor. I have given up the analogs and presently using 0mg juice. I think I'll need the nic med level to stay off the analogs. So please what are your opinions. Any advice is appreciated.