I have used 5 minute epoxy before and waited until it setup some before pushing it on to prevent the expoxy from soaking in and leaving a dark line behind the ferrule. I have also heard people say 5 minute epoxy has no business being used for ferrules even though I have never had one pop using it. When you use the slower drying epoxies, what do you do to try to prevent the glue from soaking in the wood behind the ferrule?