Can someone help with the following

1 .How "Least Often Played" and "Least Recently Played" shuffle modes actually work.

Most of the time, I use Down,Down,Down with Least Recently Played selected in the Shuffle Mode.

Presumably "Least Often Played" should play the items which i've added to the player most recently as they have been played 0 time, or any other track that has been played 0 times. Following this anything played 1 time, 2 times ....

Presumably "Least Recently Played" should play items which have been added to the player most recently as they have not been played, and then the track which is marked as being the longest ago played, moving through the list to tracks I played today.

2. How does the Skip Tracks get measured. Is this functional yet ?