I'm not trying to be difficult here but it would seem as though you may have a slight misunderstanding of how the RCA system works. I can post a picture of my 5v mod in a 2xAA box with an RCA jack if you would like.
You're right, I guess I misunderstood how the RCA system worked. I thought you had to make at least a semi-permanent change to the atomizer. If that's not the case, then, yes, most of my objections don't stand. The most important one for me, though, is that I really don't like how they look. That and the extra length. Maybe I'll build one and see firsthand.
Oh, and I would definitely like to see a picture of your 5v box mod!