liguy, i too, prefer bi-wire to single wire in my set-up. but, i've tried it both ways. (now that i'm running an identical pair of electrocompaniet amps in a vertically biamped set-up, i can say, that in my system, at least, this is *really* the way to go!) i'd really be interested in your reaction to using these same speaker wires, doubled-up to one speaker jack, w/the jumpers in place. you have everything there at your disposal, it would take you only a few minutes, at most, to make the change.
don't get me wrong - i'm sure your set-up in your home is great, & i'm also sure your dealer has an excellent demo set-up. but, i have to side w/those who feel that moving speakers from one room to another, w/who-knows-what different electronics/cabling, will introduce far more change/variables to the sonics, than yust the fact that the speaker wiring was changed from single-wire set-up to bi-wire set-up. are these even the same brand of wire that were used when at the dealers?
regards, doug s.