#1 Dump the collective and keep what RPM you have left , pull collective just above the tops of the trees and take the ride down through the branches. Keep the descent vertical as the nose of any helicopter will offer no protection,Let the structure do its job,Been there done this.(no trees)
#2 aft cyclic a little and let air speed become a little altitude and (bump) and then lower the collective a little to keep the tail rotor from hitting the ground (ARMY NOE TRICK) & keeping what RPM that will be needed for the tuochdown. Been there twice.
At cruise speed the 269 auto target is at your toes,The 206 is just above the lower windshild frame,The R-22 at 70 mph you can "ballon" and do a second auto to a new spot. The Brantley can finnish an auto with out adding collective at the bottom. and In a good stiff wind the Bell47 will float in the bottom for 300+ feet @.13" above the ground.
As for floats the tunaboat job as fun. As for the R-44 beter have the Bladders installed. Fire sucks.
A poor Peter pilot should allways fly with a way out,A keep his mind on flying. I like it use "What If?" & RPM is life.