"...the sole is the support of a horses weight." In my
opinion, the sole is one "component" of the horse's support
mechanism.
*This is very true...but in many shoe jobs, the
hoof wall and heels and toes are so long it takes away any function of the
bars, frog and sole.
a properly shod horse's hoof's contraction and release are not
affected by iron.
*This is possibly under debate....
It is the actual "structure" of the hoof,
When discussing the dynamic and fluid nature of a living organism's
mechanics (the horse), it's much more than whether to pare the sole or
not...for me anyway.
*One main point missing is that if the horse
isn't comfortable (i.e., bad trim job, bad shoe job, founder, navicular
pain,etc), then it won't move correctly, land corrently....won't load hoof
property,
which can lead to a vicious cycle losing strength
and functionality of structures in hoof,especially rear of hool (digital
cushion and lateral cartlidges)...so yes, it really may have a huge impact is
pared away