I had glued the firewall onto the Blackhawk Bullet with CA adhesive.  It turns out to be a disaster!  On the second flight the engine tore the firewall off the model with the engine running and headed for a very sensitive part of my anatomy!  Fortunately, the fuel hose stayed attached and the engine ended up eating the wing, not me.   

The wing is under repair, and the firewall is now bonded with 30 min. epoxy and a few extra supports!

Overall, though, we are getting a handle on what kind of setup is needed for Qwikee Stunt.  It is a "Big Grin" event when it is working, I assure you.  Antone Kephart showed up with a Baby Magician with a sheet wing and AP Wasp power, and it is flying just fine.  I have the Blacksheep Bullet with a Holland Hornet and a SIG 1/2A Skyray with an Atwood Shriek.  All of them will do the full pattern.  It is going to be an interesting contest when we hold it!!   

Don't we read directions only after something doesn't work.

Why do I even bother to write directions?

I'm confused.  How can I ignore the directions when they're not there?

Drill a coupla holes and glue in 1/8" wood dowels through the firewall and balsa behind.  You'll never lose another firewall.