I've been using the Protege with an adapter that I got from AltSmoke for a couple weeks now, the only KR808
device I have is an V4L pass
thru.
So far my favorite cartomizer flavors are Coffee and Marlboro/Cowboy. Just ordered 7 flavors today based on what others have said on the forum, along with a Manual kit so I could compare with an actual 3.7v V4L battery, plus there are times when I want something even smaller (thinner) than the Protege.