Gentlemen,
I don't profess to have a lot of experience with wood repair, but I have had some experience with both cyanoacrylate and gorilla glue.
Put simply, cyanoacrylate does not expand in place the way I've seen Gorilla glue have. I would have serious doubts that gorilla glue would produce a nearly invisible repair, whereas I've had good luck with cyanoacrylate glue repairing a slightly cracked M-14 stock (good strong invisible repair). I've had trouble with Gorilla glue expanding as it cured. It is a strong bond, but hardly invisible.
Just my $0.02, your experience may differ!
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