Hi Abby,
It seems that foundered horses need heel rasping around two to three
weeks at the most to keep the coffin bone ground parallel. Some, if
they are moving well, need it even more frequently. If we were to cast
the horse that started this entire episode(smile), am I looking at
trying to remove a "fresh cast" at a two week interval, which you say
is a tough job in order to rasp the heels? How often do you typically
find it optimal to retrim or reduce heels on a cast foot?
Dawn W