We tried the pen about a year ago but were having issues with insulin coming back out of it so we went back to syringes. At our most recent appt, we decided to try the pen needles again. This time, a longer needle that matches up with the length of the syringes. Have any of you found the all you needed was a longer needle or will the pen needles always have this kind of issue?- maybe it's a kid thing??? Before we were using (I'm assuming) the nanos? It was a really short needle. I really like the idea of using the pen needles and really hope the longer length will be better. Although, they are a little wider than her syringes so I hope that doesn't cause too much of an issue. ETA: I think it's the 8mm ones that she sent a script for.