Yes, the workout overrides have been helping!! I’m using Katie’s JoJo branch which has the ability to create multiple overrides. I created a “workout mode” for Running and one for Post-Running. I had to tweak these many times through trial and error for my runs. So far, I have it working pretty well, but each day is different as we know, so I must always monitor it carefully. My Running override is now set for a target range at 170. I started with 110, which ended up being too low because Loop bases temp basals on the Predicted BG. Since I was ZB for an hour before the run (depending on BG) and during the run, I think Predicted BG gradually became high, even though I wasn’t actually going high. So it would start to give a temp basal during the run 
potentially causing me to go low. So far, it is working much better than pre-Loop!!
The other probably I’m having is not related to Loop, but to Dexcom! My worst days by far since Looping have been those days where the sensor has failed. I need to be more alert to sensor failures. I don’t give up on them easily, and let them continue to cause havoc, potentially causing 1-2 days of bad results
Yes, you are right! “Out of Range” now has a double meaning!! 