I have traced my mini's all the way back and they are pure shetland..abit... much more refined.
Have also done this for a couple other people. Shetland's pure and simple.
Unless you have the Shetland/Hackney lines that are small enough to register with the mini registries.
I would believe someone would be more able to breed down a small Caspian... than from Arabs.
So much "miss" information out there is scary.
Even had people yell at me that mini's had no shetland blood...
... I say prove it... and I get all kind of excuses why not...but no proof. I aksed them about their "mini" horse's winter coat and say.. if they are purebred miniature horses... why do they have a pony's winter coat...why aren't they like say.. TB's, Arabs and the like? Should see the looks I got.
OH!
So my mini's are Reg as "mini horses" but I know they are Shetland ponies and there is nothing wrong with that.
One thing I will not do.... is say something they are not!
Breeding down...(if it is not enviroment..ie like the real Shetland Island's and how harsh it is there)..... from a full sized horse is very, very hard to do and will take a life time or more. Mini's haven't been around that long, so they had to start small...to start with. Even a rare Sport will not breed true.
Pat Parelli...went on national TV with his mini's... and said they were really miniature horse's NOT pony's.
OH! That's really helpful and not the truth. Sigh ~~~ And people will believe him.