I'd doesn't really have to be different it has to be better, I just built a bottom feeder, it looks like a bottom feeder, all look the same pretty much. Mine however is ambidextrous, smaller, and built for very low ohm builds, I'm still just playing around with it and it's already showing better numbers than any other BF I know of and the popular ones won't even handle low ohms. I like sub ohm coils, and I vape like 15ml per day. Thru a carto tank, I don't even know how many times in going to have to refill my 10ml tank, bigger than most as well...
Anyways, do it well, and make something you like, that's what I think at least. Good luck bud.
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