One benefit of bi-wiring is keeping the bass current separate from the more nuanced mids and highs. If you run one of your bi-wire speaker cable pairs directly to the LF terminals and then jump the other pair between the MF and HF posts, then you probably don't need 8 awg wire. If both pairs of your bi-wire speaker cables use the same gauge wire, then one option would be to match that gauge with your jumpers. I would pick a type of wire that most closely matches what is in the speaker cables that you like, i.e., stranded or solid core, copper or silver, etc.
I like using a spade at one end and a banana at the other end of jumpers I have made so I do not need to stack spades. I would not skimp on the connectors and if you purchase connectors that offer a set-screw connection option, you can always use them again if you want to try different wire. Furutech FP-201 and FP-202 would get the job done.
I like using a spade at one end and a banana at the other end of jumpers I have made so I do not need to stack spades. I would not skimp on the connectors and if you purchase connectors that offer a set-screw connection option, you can always use them again if you want to try different wire. Furutech FP-201 and FP-202 would get the job done.