PF#1 - as usual you were doing really well and passing the benefits of your experience to others with less knowledge - right up to the point when Shawn pointed out some facts with which you do not agree. You are only a 'dumb pilot' when you won't listen to those who do know better - we have been round the origins of the HV curve argument before on this forum - it is created by test pilots so why not listen to a test pilot when he tells you its application.
From various test points of height and speed the throttle is chopped, an appropriate delay is applied and then the TP puts the aircraft into auto and attempts to achieve a configuration from where a survivable engine off landing can be made. Where it can be done you are outside of the HV curve, from the point the TPs assess it can no longer be achieved you are inside the HV curve.
There would simply be too many graphs and information if all configurations of climb/cruise/descent were included, therefore they do the tests in level flight/hover only and accept that in a climb with higher power you will be worse off and in a descent with lower power you will be better off.
PS why didn't the guy with the private site just chop the trees down instead?