I am building a 6' fence with Menards bought green pressure treated southern yellow pine AC2, MCA wood. I set 20-10' 4 x 4 posts in holes that were 40" inches deep-12" in circumference. I used 350 lbs of cement in each hole. I then had a injury and it's now two weeks later and I am ready to install 2 x 4 x 8' boards to the posts for the pickets. I removed all the bracing hat held the posts in place while the cement dried and when looking down the row of posts there apparently was more drying the posts needed and the upper halfs of them have bowed/warped in all different directions. How would you suggest to proceed to try to get these posts as plumb as possible and/or add to the posts to make the fence as presentable as possible.