RE: Spruce or Basswood?
I have a problem with the bamboo, no glue or epoxy seems to make a real good joint with it. As to using CA on any hardwood, this can be a problem as hardwoods tend to be acidic and CA's like basic materials. To solve this just very lightly coat your hardwood with plain old baking soda and it will help the CA bond. doesn't take much, just the barest brushing of soda.