I assumed, and possibly wrong, that on the blade side, there’s a set of pads for each stripe... so you can do back to back and each stripe gets its own positive, negative, and data.
On the hilt side I believe it’s 1 negative to L1, 1 negative to L2, and then both positive wires to the positive pad/battery, and then the data line to the LS pad.
Can someone please confirm?