[Razo681]

Pens are awesome, and can even be called "dial in a donut " I use a novolog pen for my fast acting and it is much more descrete. Not to worry though they are uber accurate and work great as long as you remember to prime them first (dial in a 2 and shoot it to make sure a stream comes out). My first experience I didn't think it worked because I just used it on the first shot and didn't prime it first.