nutjob
Well-Known Member
Also i would think it quite likely that if it was masked it was with joint steroids which won't, I think, show on the blood test.
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They do show up - clearance times quoted as 7 - 21 days.
I would get the horse checked out, particularly if it has come from a dealer and there is any possibility of returning if there is a serious issue. It's also worth getting a video of the movement when the horse actually does canter left correctly. I rode one which was for sale which was struggling with the correct canter lead. I thought it was just a schooling issue, but the video showed it was bunny hopping on the corners.