Was given this tip from a few people on my last build. Drill the servo screw holes. Put a screw into each hole to create the threads. Remove the screws. Put a drop of CA into each hole. Make sure to 'pop' the web that the CA might create in the hole. Once this dries mount your servo. The CA will strengthen the hole/mount.
This works great, remember to do the servo tray as well before gluing it into the fuse.
Makes radio installation down the road very fast and easy.
When gluing the doublers it's good you use something straight + weights to hold it flat to avoid warping. I also suggest you put a few pins to make sure the sides don't move.
(After applying glue and weighting the sides down they might slip, glue makes them slippery, this is best prevented with a couple of needles)
Enjoy the build, the SSE is a fast, easy build to enjoy.... (I'm thinking about getting a couple more of them actually)
If you look around in the forum, there's plenty of SSE's being built.
Here's mine: [link=http://www.rcuniverse.com/forum/m_3540270/mpage_1/key_test005/tm.htm]Test005's SSE[/link]