Driver comparison question Nike SQ 460 vs. SQ Sumo 5000

[Longdrive]

I used to hit a Nike SQ 460 with stiff Mistubishi Diamana shaft but sold it to a friend of mine and bought a Tour 460, then a Ping Rapture. At any rate, I was playing in a captain and crew tourney this weekend with said friend and I hit the SQ 460 again and absolutely crushed it (like I used to but with much better accuracy this time). He will sell it back to me for a modest price but I am wondering if I would be better off buying the newer SQ Sumo 5000 with the same shaft for just a little more money? Please let me know your opinion and why.
Thanks,
Tim