The wing is a two servo wing running hitec digital high torque metal gear servos. I think the number is HS5625 Been flying them for over a year with no issues.

Just glued a new firewall on. I used lots of tri-stock all the way around. I'm experimenting with Gorilla glue. I used that rather than epoxy since it expands and fills in any voids. It's oozing out now so every 10 minutes or so I go out and wipe off the excess with a wet paper towel. On some areas I'm letting it foam up a lot to act as a gap filler. Should be just as strong as epoxy, but lighter and more bonding areas since it expands and creates it's own fillets between the firewall and the sides of the fuse.

Mike