I am working with a clone,one of the vent holes has a screw in it I suppose if you want to run just a single coil leave the screw in,two coils take screw out,trying to find a decent video on a build for it now.I don't think that the Aqua comes with a drip tip that's not a major issue I'm working with the Tobeco clone.
Yes, the screw comes out for dual coils. As for wicking the Aqua v2 I really have had no issues. Never really watched a video on it either. I don know suck my mod did a review on it and did a build for the review. Hope that helps.