Out of 100+ or so baits I have built I have only thru wired 3. I just have not seen a need to thru wire as strength has never been an issue. I bend my hangers by hand using those "useless X tools brand plastic fishing pliers". I leave anywhere from 3mm (I've made cranks the size of mini fat raps) to over 1 cm in length when I cut the end of the twisted part of the hanger off. Then I glue with a drop or two of super glue about 3-4 times over a 3-4 days period. It absorbs real well and I sand off the rough surface with sandpaper. Sometimes I seal the lure before gluing in hangers/tie in (usually with thinned etex but I have also sealed with superglue), sometimes after, and sometimes I don't even bother sealing (this is typically when I work with basswood or mahongony). I end up coating with at least 3 final layers.