Speaker cables bi wiring for front towers

This would be my first venture in bi wiring, it was previously bi amped but I’m now using a McIntosh mc300 to the mains. Marantz SR5011 receiver.  I have it completely pulled apart at the moment, but will add a photo when back up and running! :). I will check out those cables you recommended!

Kimber 8PR or 8TC in a 3/5 config

At your price you should just buy better single wire cables and better jumpers.

I have B&W 801 Matrix and I have them tri wired with the HF and the MF bi wired. I am using Straight Wire Crescendo. Straight Wire Crescendo brings out the very best in your speakers. 

I would find one pair of speaker cables you like best and then add a second pair of identical cables. If you take your time, it will be easy to hear if you should keep one or both pairs. For my current speakers bi-wiring actually makes a noticeable difference, but with some speakers in the past, I could not tell.