Never seen it in a new rod but a couple of my old favourites have the male ferrules relaminated with a layer of epoxy to get good grip due to extensive uses over the year . The cracked female ferrule is due to loose connection , repairing by winding thread used for guide winding will make the handle usable again but those images in the post , I have never seen a Carpenter rod with aluminium sleeve on ferrule joint , is this a custom work by other rod builder ?
All new Carpenter rods that I have seen , when inserted into the handle , tend to have circa 20mm of the male ferrule outside the handle . Is there any chance your friend has sanded the ferrule in order to get the rod inserted fully into the handle but in the process , making the male ferrule to become loose inside ?
Jon .