Why does it not work with the Pico? I see all the posts above and I am really confused by the responses giving solutions that would work with wax or dabbable concentrates when C02 oil is not really a dabbable product. If you tried dabbing C02 oil it would probably drip off the tool before you could even get the tool over your nail. If you tried filling a coil or donut atomizer than it would probably be very inefficient and so messy you'll need silicone gloves and clothes probably.
C02 is meant for wicked atomizers. Almost any will work. I just use a simple disposable battery with mine, however when I could not get pre-filled carts and only could get the C02 I just filled up the liquid carts for my V2 Pro series 3 and it worked great. This works but if I wanted to really commit to the C02 method, then I would suggest investing in a boxmod like the Pico or one of the one's mentioned in the Divine Tribe thread so you could get more use out of it if you ever wanted to use thick more stable concentrates such as wax, shatter, etc.
I also would like to note that C02 has a very unique taste. It does not taste like herbs much. It is more like a flavored E-cig. This can be an acquired taste as it was for me. I couldn't stand the taste of C02 oil at first but now it's just another vapor trail.
I would also like to summon
@zor and
@Melting Pot as they both seem to use these often enough they have posted about them and may have more to add than I just did.