Hello, I read that the R1+ does not have a "standard" RAMPS shield. Is there a reason for the Z motors being handled by separate drivers? Can they be wired in parallel or is the current draw too much for the single driver? I do have an extra "normal" shield and the expansion board (+3 extruders). Rignt now I am in the process of upgrading to an E3D Chimera (dual extrusion) but may want to go with a Kraken later.