Well, if one changes the stylus, cantilever, suspension (and perhaps coil or body), there's really not much left to call a DL103 in my book. That's a magnet then
Generally, the cartridge ends up a different beast, and should be considered/compared as such.
Of course the DL103/r might be bettered by many and various cartridges. But by how much is a matter of opinion and taste. And in stock form it has a pedigree and performance which is just awkward to explain and is iconoclastic really. It's myth busting about conical/spherical styli, amongst other things.
Over the years there have been many Denon variants which are radically different beasts too, of course.
Personally, I don't count the modified DL103/DL103R variants as the same beast. Progressively less the more it is modified. Fine in their own way, no reason to doubt. But different.
It's human nature to associate the set of changes with what it's expected to be caused by. But there's always more changed than just the tip, when one scrutinises the more common modifications. So when the conical is blamed, no-one questions. But, being rigorous, the link isn't established. No-one retips with a comparable quality conical on modified cantilevers/suspensions/coils, to my knowledge.