IME, a shotgun bi-wire speaker cable will give you the best possible distortion less sound especially in high frequencies.
I do understand budget constraints, for now I would use the jumpers supplied with the speakers until you can save up for a bi-wire cable.
You can also experiment which configuration sound better by reading this article from Nordost. The diagonal configuration (fig. 3) is quite intriguing.
http://www.nordost.com/dealer%20downloads/NorseJumperinstructions_Eng52016.pdf
I do understand budget constraints, for now I would use the jumpers supplied with the speakers until you can save up for a bi-wire cable.
You can also experiment which configuration sound better by reading this article from Nordost. The diagonal configuration (fig. 3) is quite intriguing.
http://www.nordost.com/dealer%20downloads/NorseJumperinstructions_Eng52016.pdf