I agree with tmickley's recommendations,I use K&G for anything but joints I want to disassemble.A real good trick with the Locktite Extreme is to glue up a bolt that has been ground flat (so it goes into the tang hole and through the spacers) into a handle or piece of stag (only use a little bit of glue - you just need to make the bolt hold securely).Slide on the spacers,tighten a washer and nut down and grind and polish to a perfect fit.Test fit the guard and trim the end of the spacers to get a perfect fit.After you are done, draw a light mark across the assembly (to align them later),unbolt the spacers/guard,heat up the bolt with a torch (it doesn't take much),and pull out the bolt.Drill out the remaining glue (after it re-hardens) with a slow bit in the drill press.Re-glue with good epoxy when doing the final assembly.Perfect fit and finish - right up to the guard. ( you can also use this technique to glue up and shape stacked handle sections - a la Scagel)
Stacy