Which is a better configuration IYO ?

I have two sets of speaker cables, Nordost Blue Heaven Rev. II Bi-wire and Analysis Plus Silver Ovals. My speaker is a Martin Logan Ascent. For about some time(3 months+), the Logans are just connected by means of the Nordost Bi-wire, and I have a pretty good grasp or memory of how it sounds.
Right now, I connected the AP Silvers to the panels(mid and hi) and the Nordost to the woofers. What I notice is that the sound change. Way different from what I can remember. The highs (as well as the vocals) are still clear but in a different way. The soundstage seems to move backward a few feet(artist vocals and instruments). Doing the reverse(Nordost on the top and AP Silvers on the bottom), the soundstage is back to the original but the bass seems to be extended.
Now my question is this, from what I've read, I got the impression that the Nordost should be connected to the panels, and the AP Silver, (based on the wire construction and design of the two, the AP having a larger gauge), should be better in the lows. It is possible that the Silvers(which I just got recently), needs some break in still. I just want to know your opinion or suggestion if you encounter a similar experienced. Thanks!