I own all three, my go-to for a daily every day
vape is the original V1 with the stock regular style cap as it produces good flavor and vapor. For serious cloud production or for complete unrestricted lung inhale use the competition deck(four hole) does work well but significantly mutes flavor, the competition deck + demon cap is pretty much the airiest
rda draw I have ever experienced, you can legitimately breathe in and out 100% unrestricted through it. The V1 original deck with the demon cap is actually quite nice but I'm not a fan of having to line the top cap holes up every time I take it off and the posts that stick out get in the way of my preferred build style for the Kennedy, one of the features that sold me on the Kennedy is the ability to just throw the original style cap on without lining anything up and the demon cap doesn't allow that.
