bi-wired mains / line-level sub

Hello,

I recently purchased some new speakers which are set up for bi-wiring.
My previous speakers only had a single pair of binding posts.
I had MusicMetre Signature (http://www.musicmetre.com/) quasi-solid-core, ribbon cables running them from my CODA (http://www.coda-continuum.com/) solid-state amplifier.
I also have some Apature (http://www.apature.com/) Signature 500 Plus 12GA multi-stranded wire available here.

My new speakers (http://www.vonschweikert.com/vr3_5main.htm) are set-up for bi-wiring -- which is also the suggested wiring scheme.
It was recommended to me to run the MusicMetre quasi-solid-core cables to the top (mid range and tweeter) and the Apature stranded to the bottom (woofers).
I have heard and read opposing thoughts on this.
Some say that the stranded wire is good for the bottom because of the extension and control; whereas, the solid core is better on top because of the softer, warmer, more detailed, and spacious sound.
But this does not seem to correlate well with other reports regarding highs running on the skin and lows in the core of the wires.
I have also purchased a sub-woofer (http://www.vonschweikert.com/vrs3main.htm) which will require a line-level connection.

I have yet to fire up the sub, but I started burning in and playing with the "satellites" over the past weekend.
I started out as suggested (multi-stranded on bottom / "quasi" solid-core on top) most of the weekend to get everything warmed up good and to establish a good mental image.
Sounded pretty good :-)
Then, I switched the wires around and the highs became much more pronounced and forward.
I kind of liked it at first, but it soon seemed to wear on me.
I liked the extra extension on top, but it was kind of cold/harsh sounding and not as open or spacious.
It was more difficult to notice the effect on the bottom, but it seemed to be more laid back this way.
I thought for a while that the bass might have been a bit tighter with the solid-core, but I was not certain.
After switching the wires back, it became immediately apparent that the bass was indeed more extended and pronounced with the stranded wires.
Also, the top was definitely a lot warmer, richer, smoother, and more spacious with the solid-core.

So the bottom line for my system is that the multi-stranded cables provide more extension and a louder, more forward character to both ends, while the quasi-solid-core cables provide a warmer and richer sound -- albeit perhaps a little bit subdued.

I definitely prefer it the way it is (stranded on bottom / solid-core on top), but I think I would really like something a little bit in between.
That's where some of the reviews I have read recently about the Goertz flat-ribbon, solid-core cables sounded very interesting.
There seems to be considerable talk about both aspects (extension and detail as well as the spacious, warm and clean sound).

I guess if I was to just have the VR-3.5s without the subwoofer, I would probably be inclined to leave things the way they are (to perhaps get a little bit extra bass).
But with the added subwoofer (which I still need to hook up), I don't know if perhaps I should rely more on the sub for the bottom end and pull back the bass on the 3.5s a little to get a more balanced sound???

Do any of you fine folks have any thoughts on the subject?

Much appreciated...