I have a Bailey Home Quilter on a Hintenberg frame. I live in a one bedroom apt. so have to be able to move the frame back against the wall when not in use. I put sliders under the frame and they work perfectly. My floor is ceramic tile so is level. I'm very careful when I pull or push the frame so as not to twist it, but in the seven years I've been doing this I've not had any problems at all. The Bailey is a mechanical machine without any electronics except the sew control sensors. I don't know if my method would work with the "true" longarms or not.