I'm always high on a site-change day. I've tried doubling the recommended amount of fixed prime, but I still wind up in the upper 200s. I've tried doubling my fixed prime and overbolusing for breakfast (I typically change my site first thing in the morning before breakfast) and I'm still high.
It occurred to me recently that I didn't know for sure if the "trauma" to my body from the site change was the culprit or if it was the insulin absorbing into a new place or both that was to blame. Because I'm only high after breakfast; back into range by lunch time.
