So tempting to make a cheap remark about clouds and heads being in them. But I won't
LOL yes too funny. However since we have established that the practice of VR is not a ground reference maneuver and to practice this we need to achievea rate of decent that is vertical THROUGH THE AIR (Not in relation to the ground) zero airspeed with some power applied. To practice this you need no movement through the air right? Now how do you readily achieve zero movement THOUGH THE AIR? Airspeed indicator? No, since it is (1) unreliable at low speeds and (2) will not show sideways or back wards speed THROUGH THE AIR right? Now we have that ironed out. GPS? No again since it is just showing speed over the ground and we have figured out this is not a ground reference maneuver right? So we can play hit and miss trying to achieve zero airspeed with a rate of decent and some power applied and TRY to get into VR. Clouds to work when they are available at an appropriate altitude. Recovery is achieved with airspeed (movement through the air) in really any direction preferably foreword but if there is an Obstruction in front ie a cliff feel free to go sideways or backwards.