Best 6 inch speaker cable suggestions needed.

Tried putting my SET monoblock amps close up to my speakers last night and the results are very encouraging.

I was originally running 5 feet of teflon covered 12 gauge solid ohno wire. Then I put the amps on stands up to my open baffle speakers and used 6 inches of the same wire I cut off of the original non terminated and in shotgun fashion. My very short listening tests revealed that compared to the same cable at longer lengths it allows the music to pour through the speakers even more which is quite an accomplishment as the long simple DIY cable already beat out many commercial cables in this regard. The longer version almost sounds attenuated against the 6 inch.

I don't know if my inexpensive solid 12 gauge is the best cable for a short run and don't mind opening the wallet if I can improve things even further. So from my limited reading on the forums I have come up with a few ideas and wonder how those here feel about these or any other suggestions commercially or DIY.

I should mention I also tried a piece of Van Den Hul D-352 and it produced the typical silver clarity but lean sounding and a touch too bright. I prefer something more full bodied for my open baffles. The site describes this wire as silver coated ofc so maybe I should not mix it up with pure silver silver strands and also should not dismiss silver coated wiring as I did try SR cables last year and I believe has some silver in it and it sounded very natural along with great bass,air and deep soundstage. This is the ideal sound I'm hoping to achieve.

So would some high end flexible jumpers, Goertz by the foot, copper foil,gold wiring, high end hook up wire or something else I have not thought of work better for me?