Mike:

I had one other guy with about 70 flights on his report a loos firewall. I guess I'll have to give the same instructions as with the early Edges. This is for any other people, too late for you.

Lay the fuse down on its side, nose pointing down. Dribble thin CA into joint between the firewall and the motorbox sides. Repeat this until the CA is not absorbed and sort of puddles.

Then use epoxy to put 1/2" balsa triangle stock in that corner joint from top to bottom.

TF