I've been using the Fastclix since it was first launched, as it's an easy way to change lancet quickly, and it's the most comfortable I've ever used. I had the little drums on repeat prescription, and used to use a fresh lancet for every test. After a few years of doing so, I was encouraged to re-use them by my DSN, presumably because of the taxpayer cost, which is quite a reasonable argument in my view. I also recently read a well-known diabetes book, the author of which advocates re-using lancets until they become blunt. So nowadays I tend to start a fresh needle every three days, when I change my infusion set. I haven't noticed any deterioration in accuracy or comfort.