Couple of things to look out for... make sure you yaw so that aircraft faces squarely into the wind. Any crosswind increases the chance of a tipover. When landing, pause at about 4 feet and see how steady the H is... gives you the chance if necessary to make adjustments.
I have also had this occur where you have just landed and the motors don't go into the idle speed, despite you fully holding the left stick down. You're sitting there waiting for the beast to idle down.... and instead, the H decides to tryout for the Chinese gymnastics team, with an lovely cartwheel. Oooo... there was a bit of a hop there... the judges are going to deduct points for that...
If the H does not idle down within 2 - 2.5 seconds of touching down, it is better to lift off again, hover at about 6 - 7 feet and re-attempt. That gives you choices, if it seems at all unsteady... the red button technique, which all pilots should master
Another Use for the Start/Stop button.
It is an individual decision as to whether or not to hand catch in certain circumstances, but if that technique is to be part of your flying skill set, you must practice that scenario in advance. There are ways to maximize safety when landing in this manner, and in IMHO, it should be used as a last resort after other techniques have been attempted. But ultimately, it becomes a personal decision.
It behooves all pilots to treat each landing as a potential touch-and-go... type of aircraft does not matter... from a C-130 to a BlackHawk to a paragliding wing to our UAVs... takeoff is easy... landing is everything.