Tracking shows both SKR 1.4 Turbo mainboards are inside the country. I should have them soon and I can get back to this incredible machine. One thing that is different with the SKR 1.4 over the 1.3 is it now natively supports dual Z stepper motors and has a second connector tied to the Z stepper driver. For strength and because I have such a heavy gantry I am going to be using TMC5160 drivers. This has had me thinking if I need 2 stepper drivers per axis or if just one TMC5160 is fine to drive 2 stepper motors on each axis? This sure would let me clean up my electrical. while I do not have a breakout for a second connector on each axis I sure can get or make some adapter harnesses or solder the wires together myself. I think I still have a few days to mull how I want to proceed. I do want a clean look.