Prince is still having his impulsion problem.  He also is heavy on the front end, leans on the bit, and is used to people pulling on him without giving him any release when he gives to them.  This is all related to impulsion.

To fix this we are teaching him to engage his hindquarters, with the inside hind foot taking the first step.  We did a lot of walk, trot, stop and back transitions on him, and asked him forward again.  When he breaks at the poll and gives we release pressure on his face.