After entering my waking BG this morning (102, higher than normal), now my trigger is 87.

Is the trigger based on pre-meal levels only? Those definitely are lower for me (average of 83). My waking level so far averages 94 (low of 81, high of 109 just once).

I'm trying to figure out why my waking number is sometimes above 100, like this morning. For lunch yesterday I had a 4 oz piece of cubed steak topped with one fried egg, and dinner was an 8 oz sirloin steak with one small bite of a potato skin with cheese/bacon with dinner. Maybe the higher reading this morning was because of the amount of protein.