RE: Epoxy or CA for framing?
I use a ton of thick and thin CA. Use it some and you will get a feel of where to use what. Epoxy for gear blocks, wing blocks, firewalls and firewall supports, center sections of wings and putting tails on fuses. CA everything else and then I go over all the joints with wood glue as a double glue. Adds streangth and doesn't add a lot of weight. I use a dental syringe to lay a bead in the corners. Nice!