Moving to the (hopefully) right tread.
That was the answer to the question, why a 114 player is easier to sell than a 115 player with similar SP-distributions.
So when is it, that a player is going to be sold on the next higher transfer list? when he reaches his 6th star? In my case (level 1 player) it would be better to sell a quality 24 player before he reaches 25 & gets the 6. star?