Finally soloed
It was sort of unceremonious b/c I've done many flights unassisted but with a buddy box connected. But, we pulled the plug today and it was no big deal. In fact, I brought out my EP-42 recently converted to brushless and soloed it before my LT-40 on which I have much more experience. I have less emotional investment in the electric since I didn't built it from a kit and so had no issues flying it as a solo first. Flew the LT-40 as second solo.
That box has been checked now.