Could you try one thing? Set corners to mixed and put 2 center backs and the HB at 1st corner, challenge keeper and 2nd post.
Put WBs and FBs back and the rest attack. I've found that the goal scoring from corners can increase to 1 per game!!!!!
View attachment 419070
Do you mean like this? (Fram?t=Go Forward, L?p mot fr?mre=Attack near post, L?p mot bortre=Attack far post, Utmana m?lvakt= Challenge keeper, Varierat=Mixed)