I have no aversions to clones, in fact I use my Hcigar Nemesis everyday and I love that thing...but as for the Kayfun clones, that may be a different matter. I can't say either way as far as the quality of it's clones but I can tell you that the Kayfun Lite is the pinnacle in design/flavor and consistency. I've used protanks, davide's, iclears, t3's and I can tell you the difference is hard to even comprehend. They are pricey buggers but worth every cent and then some. I spent as much on the aforementioned devices that I could have bought a KFL easily and have been done with it.
If you looked at the user manual you can see from the design the way juice is served to the wicks through the juice channels, the KFL is designed to create a vacuum within the tank. What's so amazing is you never have any degeneration in taste, you'll never get a dry or hot hit (unless you run it slap out of juice), you'll never get the fouls taste so common with the PT"S of a gummed up, gunked up nasty tasting wick.
I just got sick of buying replacement heads for our PT's and started rebuilding them and even then the vape was mediocre at best on a good day and degenerated very quickly...it's wasn't until I bought the KFL that I realized the difference was of another world. A 5/64 drill bit, 28-30 gauge kanthal wire, 8-9 wraps for a micro-coil @ 1.8ohms, pop in a cotton wick and that's it. I've used the same coil for way over a month and the only reason I would replace it was out of boredom and just wanted to wrap another with a different ohm. About the only maintenance I do is to change out my cotton wick every now and then. I normally won't even change the wick when I change flavors, I'll just vape it down low and fill it up with another flavor and keep trucking. Hell mixing juice flavors doesn't scare me, that's what we do anyway, it doesn't take but a few drags till the new juice takes over anyway.
But to make an already long story a little longer. The KFL is the best investment I've made. You'll be hard-pressed to find any Kayfun owner that doesn't absolutely love this device and if you find anyone that doesn't, I'll guarantee you, it's not the device but user error.
)but there is still either a little flavor muting or slight taste there, especially in the beginning. I'm using it but still not entirely thrilled with it. Will probably stick to regular silica or organic cotton. At least it got better - the glass is half full. 
