Being my first season hatching peachicks,I do know one very concrete thing,,those that take longer than 24 hrs from pip to egg exit,has had splayed leg issues.Also a curled toe goes along with loose legs.Not being an expert,but knowing for the legs to get stronger and more under the chick,one remedy I tried was to take a paper towel,fold it twice,so it was about 3" wide,,then carefully take the peachick,,make sure the legs are underneath it square with the thigh joint,then wrap the chick tightly and use scotch tape to secure. I have used scotch tape around a crooked toe and about a day later,it is straight. I have also used a rubber band,tying a small loop on each end,then tying a knot in the middle if necessary to make the length from leg to leg more correct,then slipping over each foot.About a day later there is a BIG improvement.