Just wondering, what exactly are "old style walkers" vs. "new style walkers" ? I hear this all the time..."oh yeah, he's an old-style walker"....what does that mean? I noticed my 16yr old breathes loud, as if her nose is obstructed. Her last owner said "yeah, the old-style walkers breath like that because they have such long nasal passages and a longer head" her other old-style walker breathed the same way. None of the other horses on her property breath loud so I don't believe it is a cold but ??? What really is an "old style walker" vs. "new style walker" ???