I received my first HH.357 the other day and put it on my VMOD XL. It took a couple days, but I think it is now "broken in." I read a couple places that this would happen. There is a very noticeable difference between how it vaped at first and how it does now. This thing hits like a freight train now. This is definitely one of my favorite setups (maybe apart from my Provari with a Penelope). I remember when I first got into vaping and came across the HH.357 while researching and thought it would be crazy to spend that amount of money on an atomizer. I have now seen the light!