RWO, great idea using the heat-shrink tubing. I just tried it on one of my Dewey rods with two different kinds of heat-shrink tubing but, it seemed too thick to enter my rifle barrel in the action. The only thing that I can think is that the dewy metal rod is thicker then the old Parker-Hale rod you did it to or youe PH was thinner, or the heat shrink tubing I tried was to thick. I went to the web site that you posted and will order some of the all electronics heat shrink tubing and give that a try, who knows it may be thinner and work. thanks john.