I usually vape my blem satin silver provari's most of the time. Well I decided that the satin black needed a day to show off. I've noticed that when ever I press the button it feels like it's moving inside. Kinda like the battery or something is shifting. Hard to describe. The button is firmer on the perfect satin black and just feels a bit different. I hope she's not getting mad at me for the lack of attention.