PS Audio Xstream Statements vs. RSA Poeima

Interesting. I've run Poeima! (original version) in my system for about 5 months. I've been happy with it, but always felt like it was a little "smoother" than I might like. So last week I bought a used set of PS Audio Xstream Statement speaker cables to see what would happen.

I've only listened for an hour or so of each cable, but the very first thing I noticed is a 2dB gain when the PS Audio cables are in. I'm guessing this is due to the Poeima having higher impedence, and I'm also guessing Robert at RSA designed the cable to have higher impedence to help "smooth out" the sound of silver. (Any thoughts on either of these two points is greatly appreciated!)

Anyway, the PS Audio cables seem to be "livelier" without being "brighter." Not sure how that can be, but it's the only way I can think to describe the difference. There is an annoying edge to certain female vocals with the PS Audio, but it seems to image better than the Poeima.

I've listening to each for an hour, comparing the two by listening to a song or two with one cable, then listening to the same song(s) with the other cable. My hands are getting tired of changing the cables!

I still can't figure out which one I'm going to keep. My IC's are all Poeima. Would buying PS Audio IC's likely help me make a decision on which way to go, or am I just spending more money?

Thanks,
Howard