Maura- 4-H classes are vastly different from county to county not to mention state to state. Soundness checks aren't common except with a knowledgeable judge or at the district/state level. At states, an unsound horse is typically dismissed from the class.
I'm wishing I could find my score sheets from way back when... I know one of them from states notes that my horse shows same natural balance and movement in hand as under saddle. This was a working hunter class. Not that that clears up the question. Lol