Sadly, my very good performing Circa crashed on the last day of flying after the slope fest had finished. It was a late afternoon flight, and I think that was a contributing factor. The batteries were a bit run down, but not enough to trigger the low voltage alarm on the telemetry.
I've written up a full report here: https://www.rcgroups.com/forums/show...36870&page=167

After some discussion, we have drawn the conclusion that the servos stalled. They were Corona939MG and were most likely not strong enough for the task. I'll use stronger ones next time, most likely MKS6100 or better.

Jim.