Whistling will allow your most recent horse to find you almost everywhere, so if you're clever, you'll select the horse you need most in a particular situation with your deeds.
When you purchase a deed and then use the in-game control to whistle for your horse, that horse will become available for you to use. Most of the horses are available via deed, which can be purchased at general stores both in the United States and Mexico. There are over twenty varieties of horse in the game, and you'll be able to ride them all. We didn't break other horses outside of missions, and were still able to buy their deeds, so long as they weren't an elite three-star horse. We've heard information to the contrary in this regard, but in our experience, the only deeds that weren't available for us in stores were three-star horses that weren't yet broken. It's simply not worth it, especially because all non-three-star deeds will become available for purchase regardless of whether the horse has been broken in the wild or not. Otherwise, stick to your basic horses, and don't waste time breaking lesser horses. Those are the only horses you should actively seek out to break. Don't bother breaking horses in the wild if they aren't of the three-star variety. Before we conclude, we want to express a word to the wise.
