I have one also, and my top cap is extremely lose. If I grab my mod from the nimbus part it will come off. Other than that I love mine, it was my first authentic rda, and I can always fix the o-ring problem. I think you'd be happy with it. If you have the money to spend and thats what you want go for it, or if your unsure buy the clone and if you like it get the real one. My personal favorite is my Atomic, but thats just me.
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