I think it's more like a certain type of music from a particular era, might be better served with something else?
In this case I don't agree, depending on what change 33off is looking for. I bought a lot of rock LP's in the late '60 and '70's. Many of them had good SQ. Seems to me an early pressing of Elton John, James Taylor, Hendrix, and many others were pretty good. The ones that are too bright will also sound better with that stylus, as will most copies with wear.
I have a 440ML OCC. I used to load it at 32K to get a balanced sound. With an ATN150MLX it smooths out like a baby's ass and it's back to 47K. Sure, you get all kinds of detail, harmonics, layering etc that's great for acoustic music, and for rock I'd still rather have it than not.
The 440/MLX will sound more like a 160ML than a 150MLX.
The point is, 33off already has the 440 and seems to like it? It's so much better for $200, why not?
That Pioneer looks like a decent arm w/removable headshell. If 33 wants something more forgiving or mellow or a mono cart, he can always swap.