I'm flipping through an auction catalog and seeing many horses listed as "Trained to ride T.S.S." or "Anybody can drive, broke single/double, tss."
I've never seen that before! I can't seem to connect it to any breed or discipline (they range QH, Haflinger, Morgan, etc types...trail, some western pleasure, some speed horses, and driving). I can't come up with any logical guess either! Can anyone enlighten me?