tommacklin,
I don't think we are far apart, the only thing we differ on is the concept of how much and when to lower the lever. I do not advocate leaving the lever up for an hour, and I'll bet you don't either, and I also do not advocate leaving it up while the Nr goes below 60%, and I will bet you don't either.
The idea of leaving the lever up and letting the rotor drop below the min range for autos as a directed training task is very bad, very very bad. The idea that the wear on the skids is controlled by bashing the head up is also very bad.
I know you don't advocate that, but by making the collective task controlled by the skids, and failing to even consider the other point, you leave all the above open to those who do not see the pitfalls.
Again, I suggest that you lower the collective when on the ground, lower it gently, and be aware of how it will change your ground friction. Do not let the rotor droop significantly below min demonstrated rotor speed, especially if there is much wind or wind gust. If you can't prevent rough stops, don't touch down at that spot.
Auto training is supposed to prevent accidents, not create them!
PS, with the rotor rpm at 65%, the peak thrust the rotor can develop is miniscule, and of little help in friction avoidance.