Upgrade to Piega C10's??

In your opinion, would I be likely to notice a significant improvement moving from my Piega P10's, to either the C8 limited., or C10 limited.?? I'm using Aloia amp and pre-amp. My system is in the living room with no room treatments. Just a regular old family room. Open to the kitchen on the left; speakers only about a foot from the front wall; back wall about 4 feet behind the listening position, cathedral ceiling, you get the picture.

I hear the new C Limited's are great speakers, but the P10's were touted as having "unbelieveable sound" when I purchased them, and they do sound good! I don't mind spending the extra money, but obviously want to hear a significant difference if I do. I'm no expert on this stuff. Some of the discussion about "extroardnarily smooth mid range" ect., sort of escape me.

Any opinions would be greatly appreciated.