Adamay,
Oh no, whatever decision you made, I respect it. Hearing a non-positive experience once in a while, IMO, is healthy and quite natural. You trust your ears and I would not do any less or differently.
It's just a bit unfortunate that you've been using such heavily braided CAT5 that I suspect has made a huge difference. I encountered a similar case when a DIY guy took efforts (along with his loving dad) to make a really elaborate and complex twisted pair of CAT5, to find out soon later that the cables didn't sound near as good as the single strands of the same material.
Yep, a most simple, unbelievable, pair of CAT5 single strands, one leg for each signal (plus/minus), twisted, thus two legs for each speaker channel will do a wonderful job on your low powered high rez system.
I do feel sorry you missed the boat this time. Who knows, you may get even a better deal down the road. Vinnie's coming up with more goodies.