Saw the endo this morning and the CDE gave us a great tip for remembering how much lead time you need for prebolusing. She said she came up with it in the shower, LOL! Anything 80 -150 you need 15 minutes. Anything over 150, you take the first 2 digits and that's your lead time. For a 213, it would be 21 minutes 305, 30 minutes 183, 18 minutes I had never heard this and thought it was a great tip for a KID to remember. Carson got it right away and is going to start trying it.