im going to be selling or trading my tn walker mix for a barrel horse prospect that im going to be training myself. what would i need to look for in a barrel horse?what type of confo? are all barrel horses hot headed? if i go to a horse auction how can i tell if one would be a barrel prospect? is speed the most important thing? im going to be looking at some paints,apps, or quarter horses,maybe thoughbred.i just want to go to local rodeos and compete in the 3ds maybe.