I know what to use for different situations but couldn't tell the names. Makes it hard to describe to others. Gee that sounds really proffesional doesn't it. I was just discussing my horse tripping. I just got off the phone with the original owner.
Horses can trip for a lot of reasons.
Toe too long, not picking up their feet because they are used in an arena and do not have to deal with obsticles. You mention that the horse throws his head. This sounds like a sore area somewhere on the horse. Usually in the saddle area. After you take the saddle off check for the wet area.