Would be totally awesome to work with but in reality, way too much "firepower" for what you need to train your eye and make improvements to a trim.
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Lack of scale is what scares me off. My vet's 5 cm brass wire on the center face of the hoof wall (dorsal hoof wall) was helpful because I can scale to that on the computer screen. I found inexpensive  5 cm stainless steel head pins used in jewelry making that would serve. 

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Cass for Cayuse (PPID/IR) and Diamond (IR)
Sonoma County, Calif. Oct. '12
Cayuse Case History                Cayuse Photos
Diamond Case History              Diamond Photos