
hi there - this is the same saddle that I have used on countless horses. the above photo shows 8 different horses.
I have used this same saddle on
QH,
TB,
Appies,
Warmbloods,
morgans,
paints,
halflingers,
grade horses,
POA's,
ponies of undetermined origins,
drafts,
draft crosses,
from 12hh - 17.2hh
I have only had to make minor adjustments to padding/shimming (and rarely shimming). I usually use a breastplate (mostly cause I think it looks good and partially because of safety. I always use the professionals choice type girth - though with one mare I had to cover it due to severe allergies on her part. Rarely I have used shelf liner under the saddle for no wither horses to help prevent slipping.
only slippage issue I ever had was the time I forgot to tighten my girth (whoops) which thankfully was caught and documented on camera - by one of my students

I only found one horse so far that just didnt like the saddle. And I have ridden a ton of horses in it.