I know the kayfun and 91 are both from fractions of the same group from the initial design but can't recall which came first.
I use clones and authentic gear and honestly have to say that the clones were very important to me when I was just starting to use mech mods and drippers as I wasn't sure it was the road I wanted to follow long term and a $400 set up was just out of the question. Since that initial experimentation phase however I have moved to authentics due to quality. Don't get me wrong, there are some great clones out there and the ones I really liked I ended up getting authentics of those mods/toppers. I do still buy clones mainly due to the fact that it is so dang hard to find authentics of many hot RDAs, some have been great while others not so much.
I use clones and authentic gear and honestly have to say that the clones were very important to me when I was just starting to use mech mods and drippers as I wasn't sure it was the road I wanted to follow long term and a $400 set up was just out of the question. Since that initial experimentation phase however I have moved to authentics due to quality. Don't get me wrong, there are some great clones out there and the ones I really liked I ended up getting authentics of those mods/toppers. I do still buy clones mainly due to the fact that it is so dang hard to find authentics of many hot RDAs, some have been great while others not so much.
