comparing the real and the clones-
1 russian 91%
2 real kayfun lite
3 real kayfun lite plus
4 the ehpro kayfun lite and lite plus
5 hcigar 3.1
6 tobeco any version including the all clear version
7 the fasttech rocket
they all vape with the proper setup but the rocket and tobeco versions are a waste of money with so many great real and clone ones out there. the ehpro versions are the best of the clones with the hcigar3.1 just about as good. i don't consider the russian 91% a clone and it is the best of all of them. at $49.99 the ehpro plus is the best quality versus $ value. yes, i have owned and used them all, and yes, it is just my opinion(but i'm right).......
oh yeah, you can get a drip tip adapter for the ehpro( got mine at discount vapors) all the newer versions come with the adapters included....