Mine are barefoot for now. My 26 yr old has never had a shoe in her life and is probably the soundest horse I own. My mare, on the other hand, has had shoes since she was 2 and is also new to the barefoot thing...since her injury in March. I've been riding her and she seems to be fine. I can even walk her across my rock driveway w/out a gimp...yes, she is tender just after a trim, but the next day, she's fine...in the air about whether to put shoes on her or not when I start running again....I've got a good farrier, tho, and he said leave her barefoot and see how it goes...shoes tend to ease my mind and give me one less thing to think about before a run.