That's OK mate, I appreciate everyone trying to help.
If the Pico works good I may just bite the bullet and buy another one of those for backup.
Yes. The AIO are systems do not have interchangeable tanks. I also apologize for not reading your correction to your original post.
You could try the other coils that fit the Evic AIO. Personally, I can speak well of any of them since they all flooded & gurgled and since I bought the entire catalogue selection, I can say I am not convinced.
That was quite a lot of money down the drain.
Clearly, some people are getting results but the pain... OMG.... of trying all these out and failing at every turn has left me bitterly disappointed.
One word of advice though... do not rush into another Pico kit.
There are better tanks than the Melo III almost certainly.
This is the way of the e-cig world. It's all beta testing really and not all products work well.