Delta A2 servos in parallel

So I plan I building a decent size CNC and I have 3 phase supply so I'll try to balance the lines as best I can.

These ASD-A2 drives do come in 3 phase variants but 400v ones are exceptionally hard to find.

​​​​​​I noticed in the general schematic that the IGBT supply bus is available through the braking resistor connection (P+)
My thought was because the z axis probably won't be working as hard as the other two axes could I have one phase per drive and link the IGBT bus between them so they share the same bus and can pull current as they need it? Very cheeky I know but I'm asking because I'm unsure if there is PFC correction that will mess with it or the brake resistor circuitry might not work as intended.

Anyone done this?