The history does not count the number of times a particular item has been selected. So if I have two shortcuts to launch the same application but with different options, and run both they have more or less the same scores. Now if I start using one more than the other, the scores don't change as both are in the history. Only by manually editing the history can I increase the weighting of one.
I would like the history to adapt to how many times an item was opened, that way the history can auto-tune more accurately track the user's choices.