I got a few Vision Stardust? at least that's what I thought I bought. I was wondering if there is a difference between the Stardust and the CE5 I've been seeing. When I bought the Stardust I got extra heads to go with it(Safety measure so I don't run out of anything again). Any opinions on either. I really like the 1.6ml size for when I'm at work cause they fit in my pen pocket of my uniform just perfect.