When I begin a print on my CR-10S the hot end is initially positioned in the center of the bed and the Z is very close to the bed. It usually deposits a blob of filament there as it heats up. It then goes to the home position, again without any increase in Z height and immediatly returns to begin the print. Between the home movement and the beginning of the print I need to try to remove the blob from the bed and hope none has stuck to the hot end.
What I am used to (via Cura) is the printer positioning home and remaining there at a reasonable Z (I am guessing 20mm.) As the print starts the hot end drops to the first layer height, extrudes a small amount of filament while at the home position before returning to the 20mm and transition to the first print position.
I am not sure how to duplicate this or create something similar.
I am concerned that the center to home transition and back to print may scratch the surface of my bed if my level is slightly off.