Polk CS1 or CS10 Center?

[Aerodude73]

Looking at upgrading my system Slowly, and am starting with the Center. Aside from the slight price diff., and yes, I know, "go and listen to the 2 side by side, and decide yourself then", is a usual reply when people ask for assistance in speaker decisions. That Aside, I have a small liv. room, 11'x13' or so, with the RM6750 system currently -- Being as the room isn't that large, anyone out there with similar room sizes who might assist with info, or their opinions, on the CS1 and CS10 Center channel spkrs by Polk? Thx.

* (Amazon: CS10 - $168.72, CS1 - $148) / or Newegg: CS10 - $129.99, CS1 - $89.99 -- Both Vendors have FREE Shipping) *

Just upgraded the RM6750 systems' sub with the PSW10 This Week, so haven't really put it thru its' paces yet (will do That this wk-end!)

(currently I'm looking at a CS1 Maple for $50 but that price may go up, as it's thru a private seller)

Thanks for any/all opinions, thoughts, etc. in advance!!