Probably no longer usefull but we had Viki out to help us with our 4yo TB who was difficult on the ground (difficult to lead, biting etc) - a single session and homework transformed him so very happy to recomend.
What changes did you make to the diet and what supplements are you feeding ? We have a 4yo who kept losing shoes as feet are breaking up and now in glue-ons in front until he grows enough foot to taks a nail...he is on hoofmaker but interested in what worked for you.
Looking at buying a Kevin Parker Helios horsebox - does anyone have any experience / feedback on these lorries re build quality, reliability, customer service etc