I've now got 25 flights on the Trex. It's remarkable how much more controllable it is compared to my King 2. While I suspect the K2 could be improved with better setup (the tracking has never been quite right after my last crash), the Trex just feels a lot more solid in the air.

Now, if only I could fix the yaw shudder/twitch I've been getting to some extent on the last 10 or so flights. Static and gyro problems have been pretty much ruled out. Hopefully it's not the belt going: it seems fine.