I picked up the same information from GARF and was hesitant as well. But I did get up enough courage to try their method and after a couple of failures due to no experience, have had great success in propagating with super glue. I use Super Glue gel which can be found at any hardware store. Using it has not affected my corals in any way. After a little practice, I can't quit propagating. I have propagated both ways, out of the tank and by applying the super glue to the frag and placing it in the water quickly to the location I want. Key here is quickness before the glue sets up. Hope this helps. I would recommend propagating to anyone. It's a great feeling when you look at a live coral knowing you had a hand in starting it successfully.
