I spent quite a few years flying in PNG & Tasmania. The countryside was mainly tall trees with limited holes for EOL. I decided a slightly heavy landing in a hole was better than a pretty landing in a 100 ft tree, so I practiced constant speed EOL with zero ground speed. In auto any helicopter can go forwards, sideways, backwards & do spot turns if you want. I took all our pilots up & taught them how to make a zero speed landing from any height. If you find a spot to land but undershoot into a tree, you are stuffed. So quite simply I got them to overshoot & at any height when over the spot, flare to zero & drop vertically onto the spot. They were all surprised how easy it was with practice. I did this in the Enstrom, 206, AS 350, H500, BO105 & a few in a S76 but to recovery. After several thousand of these, no helicopter was damaged or stressed. Yes it takes practice, but it sure beats hitting a tree.