I hand catch both a Mavic Mini and a
Mavic 2 Pro.
The procedure I use is the same for both but the Pro DEMANDS much more care.
From behind I either bring my hand up underneath the drone or make it descend towards my hand until, either way, I see the rise/hesitation as the drone 'sees' my hand. Then it's throttle closed until it settles into my cupped fingers. I have at least one finger up each side of the drone so that the option to grip it is there as soon as it is within the cup. The throttle is held closed until the motors stop.
The forearm and hand need to be in a roughly straight, horizontal line otherwise the props can clip either the inside of the wrist or in the case of the
M2P the inside of the forearm.
Keep the hand still until the motors stop otherwise the drone is likely to think it is still in flight and respond by powering the appropriate motors to try and stabilise the sensed movement. The cupping of fingers up the sides of the drone allows me to prevent it 'slipping off' my hand which is something I feared with the flat hand approach.
To be honest, with the mini it's now a reflex action with little 'thought' behind it. With the
M2P I do pay careful attention to the depth of the "cup" etc.
To hand launch I always "cup" the drone and then start the motors with the CSC maneuver. Once the motors are idling I will either slowly throttle up, in which case I can get a very slight rise into a hover or I move my hand up and down slightly to trigger a response from the motors, once they are going fast enough to take the drone's weight off my hand I can lower my hand.
I have noticed that the latter tends to produce an intitial forward and sometimes partially sideways drift of up to around 1m but the drone then tends to come back a bit. The manual throttle up approach seems to produce less drift, if any at all.