RE: Flutterby....
I hope yours continues to be fine. Trust me, its not much fine watching your plane plumit to the ground. Its like one of those movies where things are in slow motion. Not a thing you can do but watch...
Mine was an ARF. I put tons of glue on the dihedral piece that holds the wing on. So much glue I had a mess.
It is either A: DB was correct in saying a previous incident weakened the wing,
or B: It couldn't handle the G's in the Loop.
I think it is a bit of both.
Good luck with your LT - 40. I strongly recommend staying away from dives. Its not worth it......
Wings