A friend's horse has chronic problems with corns. His
farrier (who is excellent and a vet and endurance rider
herself) has tried everything over the years, some things
(eggbars, wedge pads, equithotics) helped for a while but the problem persisted.
They eventually determined that the hoof wall was actually
separating from the lamina over the heels - causing the
bleeding/bruising on the sole. The horse is currently
going in standard shoes with a frog-supporting pad (raised
slightly under the frog). He's using regular shoes, but
with extra nails at the heels - the theory behind the extra
nails is to reduce foot expansion here and try to minimize
forces that would contribute to wall/lamina separation. And
the frog pad stimulates circulation which might otherwise
be reduced with this situation.
He's been going fine so far with this new approach doing
conditioning and 50's, but hasn't done any 100's since the
change.
...something different from the other suggestions.
Steph