in my opinion, a player that has a manager that care well the shape, is in many cases, most important of the skill of the player.
for example a C-PF with
IS 15 ID 16 RIM 15 shape 8-9 stable is better than a player with
IS 16 ID 17 RIM 16 shape 6-7 and unstable
For this reason, in addition to seeing the skill, I think we should also focus on managers who own the player to see if they can manage well the shape.
P.S. for example, I only used the main skill if the other skills are all the same