Look at the video in my answer, it has much easier solution to get the IK bones work.
Which video? If you use the bone chains that did not really work for ALS as the locations are not properly constraint to the corresponding bones… 
Look at the video in my answer, it has much easier solution to get the IK bones work.
Which video? If you use the bone chains that did not really work for ALS as the locations are not properly constraint to the corresponding bones…