Instead of calling G29 directly, using a Marco could be an option where you lower fan speed, do the G29, go back to full speed.... just an idea. You can also do a retract of the filament if you want to feel safer while the bed is probed. Reason for the fan (please correct me if I'm wrong) it to ensure that the filament does not melt in the upper part, but in the hotend itself

You may also find these wiki pages useful: https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_Z_using_a_Z_probe

I tested it within several ways, which with bed compensation and it works great. Thank you to @dc42. You can mark it as solved.