epoxy (30 min) should only be used in high stress areas. the instructions for the kit should specify when epoxy is needed. other than that, its up to you. CA works good, if the fumes dont bother you, although its a good idea to have some sort of ventilation. the quick cure times make repositioning parts nearly impossible, so just make sure you test fit everything before gluing. I like to use alphatic resin (wood glue) because of its easy clean up and no harmful fumes. it does take longer to set, but i think its a good thing in case i have to reposition the part. the longer set times do slow the build down (unless you have the space to work on multiple assemblies) but to me, that helps me from getting ahead of myself and making mistakes.