You know, I've been vaping my Recurve (with 22mm caps) for a few months. Usually rotate through with the Nudge 22 and Asmodus C4.
Well I put the other two back into rotation recently, first the Nudge, then the C4. And you know what, the vape I get off of the C4 blows the Recurve away, at least to me.
Airflow is as smooth, if not smoother than the Recurve, but the C4 is a bit more restrictive. Definitely a DTL vape, but the additional bit of restriction and the smooth airflow makes it much more satisfying to me than the Recurve. I have one in rotation, three more in the vape closet, but I've going to order a few more colors to coordinate with a few other mods. For the way I like to vape, when I DTL, the C4 beats out the Nudge 22, the Recurve, the Hotcig Castle, and the Gas Mods GR1. Those are my other favorite squonk RDAs, but the C4 takes the cake for sure.
Not sure why the C4 doesn't get more attention. My only (minor) complaints are:
1) Drip tips have o-rings on the drip tip, not inside the cap. Similar to SMOK 810 style tips. Love the stabwood drip tip that comes with it though.
2) If I recall from building it, I had to hold my coil wires in place when clamping them down. The screws wanted to move the coil leads out of place.
Those are my only negatives. Simple a fantastic vape to me. Going to order a few more.