I've used both with my Spectraview Reference 271. The Spyder3Elite gave a surprisingly good result with this display, given that it had really struggled with my previous display, a Spectraview 2690. The strange thing to me is that the new Display Pro seems to give a cooler result with my monitor with the same settings, but I would say the darker tones are more neutral overall with this new puck. Incidentally, my old i1 Display2 also works very well with these wide-gamut displays.