I have found that usually when a kit says epoxy it's for plywood. Other than areas where slow setting is favored such as sheeting.
I've also found that for some reason plywood gets really friggin hot when you put CA on it. Although after it dries it holds strong I just can't get over how hot the wood gets. Kinda makes me a little nervous. I'm pretty much a thin CA, and 15 minute epoxy person. I always poke pin holes in between pieces to be joined with epoxy, and if I need to do any little fill's I just break out my little medicine bottle with sawdust in it. Fill the gap with sawdust, and hit it with CA. It dries fast, and hard. Also if I'm looking for a really lightweight strong bond I use a little baking soda with CA. Must be careful though as it's darn near impossible to sand, and hard as concrete. I did this and tried sanding it, and it was literally wearing the grit off the sand paper while making little to no progress on the piece.