I use the back to back uni for the leader to braid but I have a couple of tips. Use at least seven turns on braid then set the knot with leather gloves on really tight. Then a drop of super glue and it will never fail. You can trim the tags to nothing. For the lure either a Palomar (the only 100% strength knot according to Kreh and Sosin) or an improved clinch with two turns through the lure eye.