I know what you mean. I don't have any nippers yet so I've been trying rasp on some of mine that go barefoot so that I don't have to pay the farrier $200 every time he comes. It's hard work for an outta shape couch potato let me tall ya. I can rasp for a couple of minutes at a time before I have to go sit down and blow a while and wipe all the sweat off of my head. It works out well for the horse though because I don't hold their foot up long enough for them to get fidgety. I've just managed to do front feet on a couple of horses before I give out. I gotta get a hoof stand and some nippers, that's just all there is to it.
He's got the whole farrier set. The rasp is what gets used the most.
I've seen on websites, where people use those stool thingy's on wheels to sit on trimming hooves.