I wouldn't use this filly for more than a play day here and there. Her hind legs will not remain sound if you try and push her to do much more than that. I have been barrel racing for almost 20 years, very successfully a yV. Please educate yourself on what makes a GOOD, WELL CONFORMED barrel horse. Go look at the barrel horses for sale and stud at barrel horse world. You'll see a major difference. I made my mistake and now I have an unsound mare at 20.
To be honest, I would rather see a little too much angulation(ie. Slightly sickle hocked) than not enough. Being too straight through the hock will make for very jarring movement in the hind end, which in turn will produce more concussion on the joints.
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