Join Date: Sep 2011
Location: Germany- but not German =D
Have you had him checked for navicular?
Sorry to be a downer.. but this sounds like what we spent 4 years with for my dad's mare. However, with new shoes and retraining, she's in daily work without issue.
I would maybe have a chiro/vet/emt look at him too.
Is he 'short'- does he bob his head a little and stride a bit shorter
or is he lame- in pain and discomfort whilst moving?
Does your saddle fit too? Saddle pinching can effect them too.
If you have a school, I would warm him up walking then let him loose and see how he goes on his own on a more even surface, or trot him up on a hard surface with someone watching.
He may need more of a warm up when you ride if it is just stiffness, however. I would seek some professional advice however. Legs aren't something to mess with in horses.
best of luck though.. lameness is a horror, so many different things it could be!