Interesting comments made above. I heard a 2500 that had both a Phanton and a Vector arm on it. I liked the sound of both arms, though the table's owner and another friend very much preferred the sound of the Vector arm when using either a Transfiguration Orpheus or Lyra Titan cartridge. The Phantom arm combined with either cartridge sounded a bit less lively, but, I did not think it was quite that big a deal. This particular table was quite sensitive to footfall problems on suspended wooden floors and needed some kind of additional isolation.
I have never tried any other arm than a Vector 3 on my Debut vacuum table. I like the combination a lot. The sound is very weighty and solid, while not sounding dead or "dark." But, it is more in the high mass, well damped camp than the lightly sprung suspension camp (e.g., Michelle) so the sound may reasonably be characterized as less lively and punchy than such tables.
I have never tried any other arm than a Vector 3 on my Debut vacuum table. I like the combination a lot. The sound is very weighty and solid, while not sounding dead or "dark." But, it is more in the high mass, well damped camp than the lightly sprung suspension camp (e.g., Michelle) so the sound may reasonably be characterized as less lively and punchy than such tables.