RE: Chosing the right glue
When assembling foamies, I have used Gorilla Glue, foam-safe (odorless) CA, and two-part epoxy. Several times, I have used all three on the same airplane.
For example, I have used CA to quickly tack foam fuselage pieces together, then applied fillets of Gorilla Glue to strengthen the joints. This is a good technique if you can apply the Gorilla Glue inside a fuselage where it won't be seen (it's not very pretty).
Remember that Gorilla Glue expands and foams up as it cures, so it may not be the best choice for locations where the expanding glue would be unsightly or interfere with attaching other components. In such locations, epoxy might be a better choice.
If you use CA, be sure to get some accelerator or "kicker." When used on foam, CA can take a surprisingly long time to cure, but if you give it a spray of accelerator, it cures instantly.
So as you can see, each type of glue has its uses.
- Jeff