courteneyfish: Medium pins is just a mixture of hard and easy.
I understand that you think "hard" and "easy" denote the different sets? R u sure?
Once I tried a comparison between the pin settings (from the tips) at KIA#9.
1) I set up a practice round "hardest tees", "easy pins", played eight holes, at #9, the front pin was present. o.k.
2) New round, "hardest tees", "hard pins", played eight holes (yawn), expected the new back pin at #9, only to find the front pin again.
Thus my statement remains unchanged:
"easy, medium, hard" says nothing, you may still get all pin locations.