This happens to me a lot as Pilot and George as the CPG! Hovering and maneuvering around shooting stuff for 20 minutes and BAM! rapid loss of altitude! Tried many times to power out of it with collective but you have to be aware of the instant you start losing altitude! Yes, lateral movement works best. George can't resolve this because of these two theories as to why it keeps happening: #1 VRS is too exaggerated and too easy to enter, i find it almost impossible to hover without entering VRS at any altitude! #2 I use a Thrustmaster Warthog throttle as a collective(I don't think it matters what axis or brand controller you use). The first 50% of travel on this axis is used to just lift off the ground the next 3% of axis travel YES! 3% is where you do all of your flying, pull up 2.5% and ascend at 5000 fpm!!! reduce it 1.5% and you drop out of the sky like a rock!!!! The remaining 47% of collective axis travel is USELESS! So at 2500 feet hovering you notice you are ascending too much so you bump the collective down a millionth of an inch and ya start dropping like a rock while entering VRS and thats IT, you or George can't recover without a lateral move, repeat ad nauseum! Why does a microscopic tiny movement of the collective result in a high verticle velocity or a drop like a rock??? This is a controller mapping issue, the middle 50-70% of collective axis travel should be used for vertical velocities not 3%. We would have much finer grain of control for VV and hovering. Yanking the guts out of the aircraft with the collective just results in a loss of lift/ power exacerbating the above problems. Waiting for you to fix this Eagle Dynamics....