I have a
XYLOTEX bipoler board. I Also have 3 motors like the biggest one you have. I have mine wired using a center tap wire.
1. find the 2 center tap wires
2. match the other 2 wires up by there coil.
3. take a center tap wire and a regular wire from the same coil.
4. do the same to the other coil.
That is how I have mine wires.
Bipolar half winding.
Bipolar half-winding can give better torque performance at higher speeds