CROOKEDNESS – Aspects of crookedness:
- Misalignment of the horse’s body parts from tail to poll (e.g. popped shoulder or twisted neck).
- On straight or curved lines, lack of parallelism of the horse’s longitudinal axis to the line of travel (, e.g., haunches left or right of centerline or circle line).
- In two track/lateral work, lack of parallelism of the horse’s longitudinal axis to the line of reference (e.g., haunches leading or trailing in leg yielding).
- Lack of directness of line of travel – the horse deviating or wandering left &/or right of the desired path of travel (e.g., as in weaving).
Full glossary: http://bit.ly/2019USDFGlossary