I know exactly how you feel. LOL! It took me a long time to feel comfortable leaving Sammy when he was dropping quickly. This morning Sammy hit 56 just before I left for the office. I had given him a good bit of 8% carb food when I left and he ate most of it before I walked out the door so I felt pretty comfortable leaving him when he seemed to still be dropping. That comes from knowing how he reacts to food. When I checked him at +5 he was at 69, which I know was a direct result of the 8% food that I gave him before I left. If I had left him only 0-5% he probably would have surfed, but I didn't want to take the chance that he would go too low.
I hope Rosa earns a reduction before the next time you have to go to work, I know how stressful it is. Not sure how you can reduce much more other than to go back on an OTJ trial.