using a jumper cable - connect which set of post?

I say hedge your bet by plugging your speaker wire into one up and one down post...and reverse them every other day. The distinction between biwire cables and jumpers is clear as it regards 2 wiring scenarios, but my main speakers (Silverline Preludes) sound better single wired with the supplied gold plated brass jumpers...more coherent, unlike myself. I was told by the speaker's designer that this was the case, and was also warned NOT to lose the jumpers as he would charge me for new ones. I assume he's replaced more than a few of these so he's not shy about the warning. I think wondering what posts to use for the main wire with jumpers is a classic example of the gonzo side of this hobby, along with claiming that the use of a one inch strip of your wire instead of a pair of thick solid brass jumpers would somehow make an audible difference...but then I like gonzo.

See? I rest my case. I love this stuff.

My experience with cars and motorcycles is that they ABSOLUTELY perform better when clean. Maybe the dirt causes tiny amounts of wind resistance...in any case it's an indisputable "personal" fact. Science says that, indeed, "strapped" speaker posts represent a single electrical point to the crossover input and nobody should be able to tell what post the cable is plugged into...the fact that some claim they can hear a difference is something I can accept completely as I now go out to ride my spotless motorcycle.

The brass jumpers that came with my Silverline speakers are PERFECT. We're talking about an inch...AN INCH...now I'm all upset...

I'm still upset...but calming down.