Speaker Cable connection: Jumpers

I recently used Deoxit on my 2 channel set up, and the cotton swabs showed some oxidization coming off. Just last night I moved a bookcase from between the two speakers and put the audio stand there instead, which means I could use shorter speaker cables, from a 12' to a 4' length with Audioquest Type 4.

Anyway in doing this I remembered a tip from an audio site that forgot to try. My speakers have the dual binding posts for bi-amping with a factory gold plated jumper bar installed. I read that instead of connecting to the lower, or bass binding post and letting the highs travel through the jumper, one should connect to the high side so the highs can go straight to the crossover. The reason I was curious about this is my system is somewhat laid back in response, and I had noticed that certain high frequency detail I could hear in my car system was almost not present in the 2 channel rig.

Anyway, I am now hearing those occasional missing details, and getting more presence or "air". So what say you? Does this technique have any merit? Has anyone experimented with this?
Runnin, I have separate posts for tweeter, midrange and woofers. I use Audioquest jumpers between tweeter and mids posts. I run shotgun cable from amplifier to woofer and tweeter/mid (cable connected to tweeter side). These jumpers are made of high purity copper gold or silver plated. I use gold plated version.

Thanks for your suggestions and thoughts, looks like I need to do some reading!
So I've tried the method where positive goes to the high side and negative goes to the low side. I'm not sure if it was superior or not, I couldn't really sense a difference, but to turn off the system, reconnect each speaker and turn it back on is tough to compare with!

I've also discovered that my speakers are more laid back than I had thought. Paradigm Signature S6v2, and I had become aware that vocals tended to be warmer. I had thought it was my electronics, Parasound Halo, but when I swapped in Ascend Sierra 2's, the sound was more open and vocals too. Love those bookshelves, by the way, they go toe to toe with the much more expensive Paradigms except in the bass department which is to be expected with a tower.

Anyway, I'm somewhat surprised at the laid back house sound, Paradigm hasn't been known for this, at least in their lower lines. I started out with Emotiva gear on these speakers and they tended to be harsh at higher volumes with some sibilance or distortion present in some tracks. That was fixed with the move to Parasound gear, and with all of the tinkering I've done lately the system is sounding better than it had.
Many find the Type 4 to have a warm, laid back sound, including myself, which is why I use it on my computer based system.
Really? Then I would want to move to something else eventually as laid back speakers and laid back cables are not a good combo for me. I didn't have the Type 4 until after I got rid of the Emotiva gear. I had fine strand copper 12 gauge and saw a significant sound quality improvement when I moved to Type 4.