I think the reason why he looks like he's not that long backed is because he's strong through the loin.

He might be long in the back, but a lot of the typical conformational faults that usually associate with that weakness don't apply to him. Which is a good thing.

I agree that he's a nice horse. A very nice horse.
A great deal of intelligence can be invested in ignorance when the need for illusion is deep.
Saul Bellow (1915 - 2005)