I just pulled one drip tip off mine. The hole from the
tank to the driptip is pretty small, I don't think you could even FIT a wide bore in there. The plastic and metal tips are similar, except the metal one is a bit swooshy.
If you wish to potentially destroy your
tank you could like, widen that hole and put a wide bore tip. This still does not solve the airflow problem.
My favorite coils in that
tank are the 1.8 In my humble opinion, even airflow wide open, something about those monster coils or SOMETHING makes it impossible to get enough airflow for the wattage needed for a lower ohm tank. To be fair, I have not tried the plexus coils. I did just like, order a "sub0hm" zenith and I have no clue if the design is different but it didn't seem different and came with a 0.5 and a 1.8 coil. It was on sale and I was like, "Well, even if I hate the coil, I will have me another zenith" type deal.
If you like your zenith at all. just keep it for MTL times. I really think you should get something much more sub0hm to play with.
Anna