Hello, I just picked up smoke it is great! I want to know how often do I need to change the Atom. I did it all day @ work no smells no bs just stright up MAGIC! & I have some great ideas with Smoke,I am 3 months into the Art of Magic I have been performing for a little over a month now & this took me to greater hights, only if I can show the faces with this trick it is beautiful! a MUST have!!