OK, here is a 15hh Arab, who is is very thick and chunky in her build, even under the extra weight she is carrying here
I will have to get a set of conformation shots of her. I estimate that she will be 1000 pounds at a fit weight...............which leads my mind into another direction, as she loses the fat, but builds muscle will she actually stay the same weight but be healthier?.........20% would mean that she can carry 200 pounds of rider and tack, but I believe that she could actually carry more, how much more I don't know.
I come back to the thing that I wonder about, the Fells and Highlanders in England, together with a lot of the native breeds would have been carrying more than 20% a lot of the time. Are we more enlightened now, or have we bred out some of the weight carrying ability?
If we are saying 20% rule, but then we are saying that Arabs, Pasos, native ponies, Icelandics etc, are better weight carriers can they exceed the 20% rule and by how much? If they can't then why do we say they are better.
Some people are making a lot of riding big drafty types, while others are saying that drafts are actually a bad choice because they were bred to pull not carry, how do we add that in the equation, because for sure an 2000 pound shire horse would not want to be carrying 20% around a 400 pound person.