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Sounds like you are trying to move too fast, what speeds are you using? The diving problem (anti backlash being too tight, since has been removed) hasn’t really happened with the new parts. Same thing happened on here or by email yesterday and he was trying to move at speeds well above the firmware maximums of 197mm/s x and y, and 8.7mm/s Z.
Try 30mm/s for the x and y, and 5mm/s for the Z. Does that fix it? If it does make sure you stay below the maximums.