extending gallop

Question
I have an 8-yr old morgan/percheron cross.  He has a natural high stepping action ,great natural lateral coordination.  At a gallop, performs well, but seems not to flatten out and extend his stride.  it seems a lot of his energy is wasted on vertical movement instead of his stretching FORWARD into the stride.  I realize that he is what he is, but I want him to develop to his fullest potential.  Is it a bad idea to try to get him to extend his galloping stride?  If so, how?

Answer
Dear John:
I think you are very wise is saying "he is what he is." Yes, you could try various shoeing tricks to try and change his break over but I honestly think this is a mistake that may lead to injury. Both Morgans and Percherons have a tendency toward elevation rather than true extension (of course, there are exceptions) but as I'm sure you are aware, this goes back to the breeds' driving backgrounds. You don't say what your goals are with this horse- but if it is dressage- remember that most upper levels work is collection and not extension. As long as he is forward and covering ground-I think you'd be fighting a losing battle.
I'm sorry, I wish I had a solution for you, but it's a little like when a thoroughbred owner tells me that the horse is too forward. Hmm...
Best wishes,
S. Evans