When I used disposable atty's the EM-LR 510's was all I used. I liked the way they vaped. Once they started to stop up, I drilled the air holes out in the bottom and they kept going for the most part. There was a time that EM attys had some quality issues, but doesn't appear to be the case for a year or more. At $3 a pop from Rob, you can't go wrong...but then again, his Reomizer2 works so much better!! He can even mill it down to fit a Mini so that's what I use on my Reo's now!