My regiment here was following this practice back in '14 at least. We didn't do it in pre '98 though. Also during ceremonial parades we had taken up practice of the right guide using a lash up C7 bayonet handle with a #1Mk3 bayonet blade welded on. I guess for visual reference during the right dress... The color party here uses a stub scabbard chape on a chrome bayonet to save the colors on parade.