Jason,
outstanding! She sure looks pretty ballistic in the flats!
Great day for a maiden too. Your field does get busy... that's Canada for us.
It sounds amazing turning that huge prop. Are the 40C's still pumping out 7200 rpm after the flight? Still using a Xoar 20x8? Tried an APC, an Evolution or a Vess 20B or 21B? Might be interesting to compare - electric motors are so "elastic" it might feel all together different. By the way, do you have any figures on amps and watts? Are you on the line or is there still some room with the motor and esc? If there is, a 21" might be interesting or a 20x10.
Can't believe the BEC Pro blew your servos

. Castle sure sounds like the right kind of company to do business with though - good service on their part. I take it you decided to pull the BEC and just use a separate pack? Probably not a bad idea given the circuitry (wire gauge and such) with the Lipo's in the chain.
It's probably overkill but a Smart Fly board (or the like) might give some peace of mind and insure the beautiful CAP has a long life. You could use two smaller packs to keep the weight in check and the board will pull evenly from both packs and offer some protection and delivery to those big servos.
Maybe you're already using one - can't remember.
Great build - thanks for the video and thread and enjoy her this summer.
David.