TB's have hearts as big as they are. And while you may have to shop
around to find an endurance/CTR TB prospect, you have to do that anyway for
an Arab, or any breed for that matter! Check out the TB/App crosses for
attitude, athletic ability & personality.
And if you know your TB bloodlines, you know to go to the distance lines,
not the sprinters. Ask any steeplechaser.... or any 3-day eventer.
Believe me, the fit TB will have blood vessels popping out everywhere--no
problem with cooling when you're careful!
Diane @ Safe Haven (with a big cheer for TB's)