Chest pieces do not need crotch flaps. They always clip with legs. We can't have legs AND chest pieces using crotch flaps. Why is it like that. That's a clipping nightmare!
A suggestion I saw that made a lot of sense is that all crotch flaps become part of waist buckles instead so that way it can be controlled whether you have one or not.
Otherwise a player sits and has to try a chest piece with every leg piece to find one that doesn't clip!